' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n\n\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n\n\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n\n\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n\n\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n\n\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n\n\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n\n\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n\n\n function eq(value, other) {\n return value === other || value !== value && other !== other;\n }\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n\n\n var gt = createRelationalOperation(baseGt);\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n\n var gte = createRelationalOperation(function (value, other) {\n return value >= other;\n });\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n\n var isArguments = baseIsArguments(function () {\n return arguments;\n }()) ? baseIsArguments : function (value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');\n };\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n\n var isArray = Array.isArray;\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n\n\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n\n\n function isBoolean(value) {\n return value === true || value === false || isObjectLike(value) && baseGetTag(value) == boolTag;\n }\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n\n\n var isBuffer = nativeIsBuffer || stubFalse;\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n\n\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n\n if (isArrayLike(value) && (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n\n var tag = getTag(value);\n\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n\n return true;\n }\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n\n\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n\n\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n\n\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag || typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value);\n }\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n\n\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n\n\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n } // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n\n\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n\n\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n\n\n function isLength(value) {\n return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n\n\n function isObject(value) {\n var type = _typeof(value);\n\n return value != null && (type == 'object' || type == 'function');\n }\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n\n\n function isObjectLike(value) {\n return value != null && _typeof(value) == 'object';\n }\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n\n\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n\n\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n\n\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n\n\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n\n return baseIsNative(value);\n }\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n\n\n function isNull(value) {\n return value === null;\n }\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n\n\n function isNil(value) {\n return value == null;\n }\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n\n\n function isNumber(value) {\n return typeof value == 'number' || isObjectLike(value) && baseGetTag(value) == numberTag;\n }\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n\n\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n\n var proto = getPrototype(value);\n\n if (proto === null) {\n return true;\n }\n\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString;\n }\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n\n\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n\n\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n\n function isString(value) {\n return typeof value == 'string' || !isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag;\n }\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n\n\n function isSymbol(value) {\n return _typeof(value) == 'symbol' || isObjectLike(value) && baseGetTag(value) == symbolTag;\n }\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n\n\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n\n function isUndefined(value) {\n return value === undefined;\n }\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n\n\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n\n\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n\n\n var lt = createRelationalOperation(baseLt);\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n\n var lte = createRelationalOperation(function (value, other) {\n return value <= other;\n });\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n\n function toArray(value) {\n if (!value) {\n return [];\n }\n\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : tag == setTag ? setToArray : values;\n return func(value);\n }\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n\n\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n\n value = toNumber(value);\n\n if (value === INFINITY || value === -INFINITY) {\n var sign = value < 0 ? -1 : 1;\n return sign * MAX_INTEGER;\n }\n\n return value === value ? value : 0;\n }\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n\n\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n return result === result ? remainder ? result - remainder : result : 0;\n }\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n\n\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n\n\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n\n if (isSymbol(value)) {\n return NAN;\n }\n\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? other + '' : other;\n }\n\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return isBinary || reIsOctal.test(value) ? freeParseInt(value.slice(2), isBinary ? 2 : 8) : reIsBadHex.test(value) ? NAN : +value;\n }\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n\n\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n\n\n function toSafeInteger(value) {\n return value ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER) : value === 0 ? value : 0;\n }\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n\n\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n\n\n var assign = createAssigner(function (object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n\n var assignIn = createAssigner(function (object, source) {\n copyObject(source, keysIn(source), object);\n });\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n\n var assignInWith = createAssigner(function (object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n\n var assignWith = createAssigner(function (object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n\n var at = flatRest(baseAt);\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n\n\n var defaults = baseRest(function (object, sources) {\n object = Object(object);\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined || eq(value, objectProto[key]) && !hasOwnProperty.call(object, key)) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n\n var defaultsDeep = baseRest(function (args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n\n\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n\n\n function forIn(object, iteratee) {\n return object == null ? object : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n\n\n function forInRight(object, iteratee) {\n return object == null ? object : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n\n\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n\n\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n\n\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n\n\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n\n\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n\n\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n\n\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n\n\n var invert = createInverter(function (result, value, key) {\n if (value != null && typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n\n var invertBy = createInverter(function (result, value, key) {\n if (value != null && typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n\n var invoke = baseRest(baseInvoke);\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n\n\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n\n\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n baseForOwn(object, function (value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n\n\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n baseForOwn(object, function (value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n\n\n var merge = createAssigner(function (object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n\n var mergeWith = createAssigner(function (object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n\n var omit = flatRest(function (object, paths) {\n var result = {};\n\n if (object == null) {\n return result;\n }\n\n var isDeep = false;\n paths = arrayMap(paths, function (path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n\n var length = paths.length;\n\n while (length--) {\n baseUnset(result, paths[length]);\n }\n\n return result;\n });\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n\n\n var pick = flatRest(function (object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n\n var props = arrayMap(getAllKeysIn(object), function (prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function (value, path) {\n return predicate(value, path[0]);\n });\n }\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n\n\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n var index = -1,\n length = path.length; // Ensure the loop is entered when path is empty.\n\n if (!length) {\n length = 1;\n object = undefined;\n }\n\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n\n object = isFunction(value) ? value.call(object) : value;\n }\n\n return object;\n }\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n\n\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n\n\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n\n\n var toPairs = createToPairs(keys);\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n\n var toPairsIn = createToPairs(keysIn);\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n iteratee = getIteratee(iteratee, 4);\n\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n\n if (isArrLike) {\n accumulator = isArr ? new Ctor() : [];\n } else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n } else {\n accumulator = {};\n }\n }\n\n (isArrLike ? arrayEach : baseForOwn)(object, function (value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n\n\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n\n\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n\n\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n\n\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n\n\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n\n\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n\n return baseClamp(toNumber(number), lower, upper);\n }\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n\n\n function inRange(number, start, end) {\n start = toFinite(start);\n\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n\n\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n } else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n } else {\n lower = toFinite(lower);\n\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1))), upper);\n }\n\n return baseRandom(lower, upper);\n }\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n\n\n var camelCase = createCompounder(function (result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n\n\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n\n\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n var length = string.length;\n position = position === undefined ? length : baseClamp(toInteger(position), 0, length);\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n\n\n function escape(string) {\n string = toString(string);\n return string && reHasUnescapedHtml.test(string) ? string.replace(reUnescapedHtml, escapeHtmlChar) : string;\n }\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n\n\n function escapeRegExp(string) {\n string = toString(string);\n return string && reHasRegExpChar.test(string) ? string.replace(reRegExpChar, '\\\\$&') : string;\n }\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n\n\n var kebabCase = createCompounder(function (result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n\n var lowerCase = createCompounder(function (result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n\n var lowerFirst = createCaseFirst('toLowerCase');\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n var strLength = length ? stringSize(string) : 0;\n\n if (!length || strLength >= length) {\n return string;\n }\n\n var mid = (length - strLength) / 2;\n return createPadding(nativeFloor(mid), chars) + string + createPadding(nativeCeil(mid), chars);\n }\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n\n\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n var strLength = length ? stringSize(string) : 0;\n return length && strLength < length ? string + createPadding(length - strLength, chars) : string;\n }\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n\n\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n var strLength = length ? stringSize(string) : 0;\n return length && strLength < length ? createPadding(length - strLength, chars) + string : string;\n }\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n\n\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n\n\n function repeat(string, n, guard) {\n if (guard ? isIterateeCall(string, n, guard) : n === undefined) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n\n return baseRepeat(toString(string), n);\n }\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n\n\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n\n\n var snakeCase = createCompounder(function (result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n\n if (!limit) {\n return [];\n }\n\n string = toString(string);\n\n if (string && (typeof separator == 'string' || separator != null && !isRegExp(separator))) {\n separator = baseToString(separator);\n\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n\n return string.split(separator, limit);\n }\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n\n\n var startCase = createCompounder(function (result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null ? 0 : baseClamp(toInteger(position), 0, string.length);\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %>');\n * compiled({ 'value': '\n * \n * @example\n *data, is a {@link LocalPayment~startPaymentPayload|startPaymentPayload}. If no callback is provided, the method will return a Promise that resolves with a {@link LocalPayment~startPaymentPayload|startPaymentPayload}.\n * @example\n * button.addEventListener('click', function () {\n * // Disable the button when local payment is in progress\n * button.setAttribute('disabled', 'disabled');\n *\n * // Because startPayment opens a new window, this must be called\n * // as a result of a user action, such as a button click.\n * localPaymentInstance.startPayment({\n * paymentType: 'ideal',\n * paymentTypeCountryCode: 'NL',\n * fallback: {\n * buttonText: 'Return to Merchant',\n * url: 'https://example.com/my-checkout-page'\n * },\n * amount: '10.00',\n * currencyCode: 'EUR',\n * onPaymentStart: function (data, continueCallback) {\n * // Do any preprocessing before starting the flow\n * // data.paymentId is the ID of the localPayment\n * continueCallback();\n * }\n * }).then(function (payload) {\n * button.removeAttribute('disabled');\n * // Submit payload.nonce to your server\n * }).catch(function (startPaymentError) {\n * button.removeAttribute('disabled');\n * // Handle flow errors or premature flow closure\n * console.error('Error!', startPaymentError);\n * });\n * });\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n LocalPayment.prototype.startPayment = function (options) {\n var address, params, promise;\n var self = this; // eslint-disable-line no-invalid-this\n\n var serviceId = this._frameService._serviceId; // eslint-disable-line no-invalid-this\n\n var windowOptions = options.windowOptions || {};\n\n if (hasMissingOption(options)) {\n return Promise.reject(new BraintreeError(errors.LOCAL_PAYMENT_START_PAYMENT_MISSING_REQUIRED_OPTION));\n }\n\n address = options.address || {};\n params = {\n intent: 'sale',\n returnUrl: querystring.queryify(self._assetsUrl + '/html/local-payment-redirect-frame' + useMin(self._isDebug) + '.html', {\n channel: serviceId,\n r: options.fallback.url,\n t: options.fallback.buttonText\n }),\n cancelUrl: querystring.queryify(self._assetsUrl + '/html/local-payment-redirect-frame' + useMin(self._isDebug) + '.html', {\n channel: serviceId,\n r: options.fallback.cancelUrl || options.fallback.url,\n t: options.fallback.cancelButtonText || options.fallback.buttonText,\n c: 1 // indicating we went through the cancel flow\n\n }),\n experienceProfile: {\n noShipping: !options.shippingAddressRequired\n },\n fundingSource: options.paymentType,\n paymentTypeCountryCode: options.paymentTypeCountryCode,\n amount: options.amount,\n currencyIsoCode: options.currencyCode,\n firstName: options.givenName,\n lastName: options.surname,\n payerEmail: options.email,\n phone: options.phone,\n line1: address.streetAddress,\n line2: address.extendedAddress,\n city: address.locality,\n state: address.region,\n postalCode: address.postalCode,\n countryCode: address.countryCode,\n merchantAccountId: self._merchantAccountId,\n bic: options.bic\n };\n self._paymentType = options.paymentType.toLowerCase();\n\n if (self._authorizationInProgress) {\n analytics.sendEvent(self._client, self._paymentType + '.local-payment.start-payment.error.already-opened');\n return Promise.reject(new BraintreeError(errors.LOCAL_PAYMENT_ALREADY_IN_PROGRESS));\n }\n\n self._authorizationInProgress = true;\n promise = new ExtendedPromise();\n self._startPaymentCallback = self._createStartPaymentCallback(function (val) {\n promise.resolve(val);\n }, function (err) {\n promise.reject(err);\n });\n\n self._frameService.open({\n width: windowOptions.width || DEFAULT_WINDOW_WIDTH,\n height: windowOptions.height || DEFAULT_WINDOW_HEIGHT\n }, self._startPaymentCallback);\n\n self._client.request({\n method: 'post',\n endpoint: 'local_payments/create',\n data: params\n }).then(function (response) {\n analytics.sendEvent(self._client, self._paymentType + '.local-payment.start-payment.opened');\n self._startPaymentOptions = options;\n options.onPaymentStart({\n paymentId: response.paymentResource.paymentToken\n }, function () {\n self._frameService.redirect(response.paymentResource.redirectUrl);\n });\n }).catch(function (err) {\n var status = err.details && err.details.httpStatus;\n\n self._frameService.close();\n\n self._authorizationInProgress = false;\n\n if (status === 422) {\n promise.reject(new BraintreeError({\n type: errors.LOCAL_PAYMENT_INVALID_PAYMENT_OPTION.type,\n code: errors.LOCAL_PAYMENT_INVALID_PAYMENT_OPTION.code,\n message: errors.LOCAL_PAYMENT_INVALID_PAYMENT_OPTION.message,\n details: {\n originalError: err\n }\n }));\n return;\n }\n\n promise.reject(convertToBraintreeError(err, {\n type: errors.LOCAL_PAYMENT_START_PAYMENT_FAILED.type,\n code: errors.LOCAL_PAYMENT_START_PAYMENT_FAILED.code,\n message: errors.LOCAL_PAYMENT_START_PAYMENT_FAILED.message\n }));\n });\n\n return promise;\n };\n /**\n * Manually tokenizes params for a local payment received from PayPal.When app switching back from a mobile application (such as a bank application for an iDEAL payment), the window may lose context with the parent page. In that case, a fallback url is used, and this method can be used to finish the flow.\n * @public\n * @function\n * @param {object} [params] All options for tokenizing local payment parameters. If no params are passed in, the params will be pulled off of the query string of the page.\n * @param {string} params.btLpToken The token representing the local payment. Aliased to `token` if `btLpToken` is not present.\n * @param {string} params.btLpPaymentId The payment id for the local payment. Aliased to `paymentId` if `btLpPaymentId` is not present.\n * @param {string} params.btLpPayerId The payer id for the local payment. Aliased to `PayerID` if `btLpPayerId` is not present.\n * @param {callback} [callback] The second argument, data, is a {@link LocalPayment~startPaymentPayload|startPaymentPayload}. If no callback is provided, the method will return a Promise that resolves with a {@link LocalPayment~startPaymentPayload|startPaymentPayload}.\n * @example\n * localPaymentInstance.tokenize().then(function (payload) {\n * // send payload.nonce to your server\n * }).catch(function (err) {\n * // handle tokenization error\n * });\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n LocalPayment.prototype.tokenize = function (params) {\n var self = this;\n var client = this._client;\n params = params || querystring.parse();\n\n if (params.c || params.wasCanceled) {\n return Promise.reject(new BraintreeError({\n type: errors.LOCAL_PAYMENT_CANCELED.type,\n code: errors.LOCAL_PAYMENT_CANCELED.code,\n message: errors.LOCAL_PAYMENT_CANCELED.message,\n details: {\n originalError: {\n errorcode: params.errorcode,\n token: params.btLpToken\n }\n }\n }));\n } else if (params.errorcode) {\n return Promise.reject(new BraintreeError({\n type: errors.LOCAL_PAYMENT_START_PAYMENT_FAILED.type,\n code: errors.LOCAL_PAYMENT_START_PAYMENT_FAILED.code,\n message: errors.LOCAL_PAYMENT_START_PAYMENT_FAILED.message,\n details: {\n originalError: {\n errorcode: params.errorcode,\n token: params.btLpToken\n }\n }\n }));\n }\n\n return client.request({\n endpoint: 'payment_methods/paypal_accounts',\n method: 'post',\n data: this._formatTokenizeData(params)\n }).then(function (response) {\n var payload = self._formatTokenizePayload(response);\n\n if (window.popupBridge) {\n analytics.sendEvent(client, self._paymentType + '.local-payment.tokenization.success-popupbridge');\n } else {\n analytics.sendEvent(client, self._paymentType + '.local-payment.tokenization.success');\n }\n\n return payload;\n }).catch(function (err) {\n analytics.sendEvent(client, self._paymentType + '.local-payment.tokenization.failed');\n return Promise.reject(convertToBraintreeError(err, {\n type: errors.LOCAL_PAYMENT_TOKENIZATION_FAILED.type,\n code: errors.LOCAL_PAYMENT_TOKENIZATION_FAILED.code,\n message: errors.LOCAL_PAYMENT_TOKENIZATION_FAILED.message\n }));\n });\n };\n /**\n * Closes the LocalPayment window if it is open.\n * @public\n * @example\n * localPaymentInstance.closeWindow();\n * @returns {void}\n */\n\n\n LocalPayment.prototype.closeWindow = function () {\n if (this._authoriztionInProgress) {\n analytics.sendEvent(this._client, this._paymentType + '.local-payment.start-payment.closed.by-merchant');\n }\n\n this._frameService.close();\n };\n /**\n * Focuses the LocalPayment window if it is open.\n * @public\n * @example\n * localPaymentInstance.focusWindow();\n * @returns {void}\n */\n\n\n LocalPayment.prototype.focusWindow = function () {\n this._frameService.focus();\n };\n\n LocalPayment.prototype._createStartPaymentCallback = function (resolve, reject) {\n var self = this;\n var client = this._client;\n return function (err, params) {\n self._authorizationInProgress = false;\n\n if (err) {\n if (err.code === 'FRAME_SERVICE_FRAME_CLOSED') {\n if (params && params.errorcode === 'processing_error') {\n // something failed within the payment window (rather than when\n // tokenizing with Braintree)\n analytics.sendEvent(client, self._paymentType + '.local-payment.failed-in-window');\n reject(new BraintreeError(errors.LOCAL_PAYMENT_START_PAYMENT_FAILED));\n return;\n } // its possible to have a query param with errorcode=payment_error, which\n // indicates that the customer cancelled the flow from within the UI,\n // but as there's no meaningful difference to the merchant whether the\n // customer closes via the UI or by manually closing the window, we\n // don't differentiate these\n\n\n analytics.sendEvent(client, self._paymentType + '.local-payment.tokenization.closed.by-user');\n reject(new BraintreeError(errors.LOCAL_PAYMENT_WINDOW_CLOSED));\n } else if (err.code && err.code.indexOf('FRAME_SERVICE_FRAME_OPEN_FAILED') > -1) {\n reject(new BraintreeError({\n code: errors.LOCAL_PAYMENT_WINDOW_OPEN_FAILED.code,\n type: errors.LOCAL_PAYMENT_WINDOW_OPEN_FAILED.type,\n message: errors.LOCAL_PAYMENT_WINDOW_OPEN_FAILED.message,\n details: {\n originalError: err\n }\n }));\n }\n } else if (params) {\n if (!window.popupBridge) {\n self._frameService.redirect(self._loadingFrameUrl);\n }\n\n self.tokenize(params).then(resolve).catch(reject).then(function () {\n self._frameService.close();\n });\n }\n };\n };\n\n LocalPayment.prototype._formatTokenizePayload = function (response) {\n var payload;\n var account = {};\n\n if (response.paypalAccounts) {\n account = response.paypalAccounts[0];\n }\n\n payload = {\n nonce: account.nonce,\n details: {},\n type: account.type\n };\n\n if (account.details) {\n if (account.details.payerInfo) {\n payload.details = account.details.payerInfo;\n }\n\n if (account.details.correlationId) {\n payload.correlationId = account.details.correlationId;\n }\n }\n\n return payload;\n };\n /**\n * Checks if required tokenization parameters are available in querystring for manual tokenization requests.\n * @public\n * @function\n * @example\n * // if query string contains\n * // ?btLpToken=token&btLpPaymentId=payment-id&btLpPayerId=payer-id\n * localPaymentInstance.hasTokenizationParams(); // true\n *\n * // if query string is missing required params\n * localPaymentInstance.hasTokenizationParams(); // false\n *\n * if (localPaymentInstance.hasTokenizationParams()) {\n * localPaymentInstance.tokenize();\n * }\n * @returns {Boolean} Returns a Boolean value for the state of the query string.\n */\n\n\n LocalPayment.prototype.hasTokenizationParams = function () {\n var params = querystring.parse();\n\n if (params.errorcode) {\n return true;\n }\n\n return Boolean(params.btLpToken && params.btLpPaymentId && params.btLpPayerId);\n };\n\n LocalPayment.prototype._formatTokenizeData = function (params) {\n var clientConfiguration = this._client.getConfiguration();\n\n var gatewayConfiguration = clientConfiguration.gatewayConfiguration;\n var data = {\n merchantAccountId: this._merchantAccountId,\n paypalAccount: {\n correlationId: params.btLpToken || params.token,\n paymentToken: params.btLpPaymentId || params.paymentId,\n payerId: params.btLpPayerId || params.PayerID,\n unilateral: gatewayConfiguration.paypal.unvettedMerchant,\n intent: 'sale'\n }\n };\n return data;\n };\n\n function hasMissingOption(options) {\n var i, option;\n\n if (!options) {\n return true;\n }\n\n for (i = 0; i < constants.REQUIRED_OPTIONS_FOR_START_PAYMENT.length; i++) {\n option = constants.REQUIRED_OPTIONS_FOR_START_PAYMENT[i];\n\n if (!options.hasOwnProperty(option)) {\n return true;\n }\n }\n\n if (!(options.fallback.url && options.fallback.buttonText)) {\n return true;\n }\n\n return false;\n }\n /**\n * Cleanly remove anything set up by {@link module:braintree-web/local-payment.create|create}.\n * @public\n * @param {callback} [callback] Called on completion.\n * @example\n * localPaymentInstance.teardown();\n * @example data, is a {@link Masterpass~tokenizePayload|tokenizePayload}. If no callback is provided, the method will return a Promise that resolves with a {@link Masterpass~tokenizePayload|tokenizePayload}.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * button.addEventListener('click', function () {\n * // Disable the button so that we don't attempt to open multiple popups.\n * button.setAttribute('disabled', 'disabled');\n *\n * // Because tokenize opens a new window, this must be called\n * // as a result of a user action, such as a button click.\n * masterpassInstance.tokenize({\n * currencyCode: 'USD',\n * subtotal: '10.00'\n * }).then(function (payload) {\n * button.removeAttribute('disabled');\n * // Submit payload.nonce to your server\n * }).catch(function (tokenizeError) {\n * button.removeAttribute('disabled');\n * // Handle flow errors or premature flow closure\n *\n * switch (tokenizeErr.code) {\n * case 'MASTERPASS_POPUP_CLOSED':\n * console.error('Customer closed Masterpass popup.');\n * break;\n * case 'MASTERPASS_ACCOUNT_TOKENIZATION_FAILED':\n * console.error('Masterpass tokenization failed. See details:', tokenizeErr.details);\n * break;\n * case 'MASTERPASS_FLOW_FAILED':\n * console.error('Unable to initialize Masterpass flow. Are your options correct?', tokenizeErr.details);\n * break;\n * default:\n * console.error('Error!', tokenizeErr);\n * }\n * });\n * });\n */\n\n\n Masterpass.prototype.tokenize = function (options) {\n var self = this;\n\n if (!options || hasMissingOption(options)) {\n return Promise.reject(new BraintreeError(errors.MASTERPASS_TOKENIZE_MISSING_REQUIRED_OPTION));\n }\n\n if (self._authInProgress) {\n return Promise.reject(new BraintreeError(errors.MASTERPASS_TOKENIZATION_ALREADY_IN_PROGRESS));\n }\n\n return new Promise(function (resolve, reject) {\n self._navigateFrameToLoadingPage(options).catch(reject); // This MUST happen after _navigateFrameToLoadingPage for Metro browsers to work.\n\n\n self._frameService.open(options.frameOptions, self._createFrameOpenHandler(resolve, reject));\n });\n };\n\n Masterpass.prototype._navigateFrameToLoadingPage = function (options) {\n var self = this;\n this._authInProgress = true;\n return this._client.request({\n method: 'post',\n endpoint: 'masterpass/request_token',\n data: {\n requestToken: {\n originUrl: window.location.protocol + '//' + window.location.hostname,\n subtotal: options.subtotal,\n currencyCode: options.currencyCode,\n callbackUrl: this._callbackUrl\n }\n }\n }).then(function (response) {\n var redirectUrl = self._assetsUrl + '/html/masterpass-loading-frame' + (self._isDebug ? '' : '.min') + '.html?';\n\n var gatewayConfiguration = self._client.getConfiguration().gatewayConfiguration;\n\n var config = options.config || {};\n var queryParams;\n queryParams = {\n environment: gatewayConfiguration.environment,\n requestToken: response.requestToken,\n callbackUrl: self._callbackUrl,\n merchantCheckoutId: gatewayConfiguration.masterpass.merchantCheckoutId,\n allowedCardTypes: gatewayConfiguration.masterpass.supportedNetworks,\n version: constants.MASTERPASS_VERSION\n };\n Object.keys(config).forEach(function (key) {\n if (typeof config[key] !== 'function') {\n queryParams[key] = config[key];\n }\n });\n redirectUrl += Object.keys(queryParams).map(function (key) {\n return key + '=' + queryParams[key];\n }).join('&');\n\n self._frameService.redirect(redirectUrl);\n }).catch(function (err) {\n var status = err.details && err.details.httpStatus;\n\n self._closeWindow();\n\n if (status === 422) {\n return Promise.reject(convertToBraintreeError(err, errors.MASTERPASS_INVALID_PAYMENT_OPTION));\n }\n\n return Promise.reject(convertToBraintreeError(err, errors.MASTERPASS_FLOW_FAILED));\n });\n };\n\n Masterpass.prototype._createFrameOpenHandler = function (resolve, reject) {\n var self = this;\n\n if (window.popupBridge) {\n return function (popupBridgeErr, payload) {\n self._authInProgress = false;\n\n if (popupBridgeErr) {\n analytics.sendEvent(self._client, 'masterpass.tokenization.closed-popupbridge.by-user');\n reject(convertToBraintreeError(popupBridgeErr, errors.MASTERPASS_POPUP_CLOSED));\n return;\n } else if (!payload.queryItems) {\n analytics.sendEvent(self._client, 'masterpass.tokenization.failed-popupbridge');\n reject(new BraintreeError(errors.MASTERPASS_FLOW_FAILED));\n return;\n }\n\n self._tokenizeMasterpass(payload.queryItems).then(resolve).catch(reject);\n };\n }\n\n return function (frameServiceErr, payload) {\n if (frameServiceErr) {\n self._authInProgress = false;\n\n if (frameServiceErr.code === 'FRAME_SERVICE_FRAME_CLOSED') {\n analytics.sendEvent(self._client, 'masterpass.tokenization.closed.by-user');\n reject(new BraintreeError(errors.MASTERPASS_POPUP_CLOSED));\n return;\n }\n\n if (frameServiceErr.code && frameServiceErr.code.indexOf('FRAME_SERVICE_FRAME_OPEN_FAILED') > -1) {\n analytics.sendEvent(self._client, 'masterpass.tokenization.failed.to-open');\n reject(new BraintreeError({\n code: errors.MASTERPASS_POPUP_OPEN_FAILED.code,\n type: errors.MASTERPASS_POPUP_OPEN_FAILED.type,\n message: errors.MASTERPASS_POPUP_OPEN_FAILED.message,\n details: {\n originalError: frameServiceErr\n }\n }));\n return;\n }\n\n analytics.sendEvent(self._client, 'masterpass.tokenization.failed');\n\n self._closeWindow();\n\n reject(convertToBraintreeError(frameServiceErr, errors.MASTERPASS_FLOW_FAILED));\n return;\n }\n\n self._tokenizeMasterpass(payload).then(resolve).catch(reject);\n };\n };\n\n Masterpass.prototype._tokenizeMasterpass = function (payload) {\n var self = this;\n\n if (payload.mpstatus !== 'success') {\n analytics.sendEvent(self._client, 'masterpass.tokenization.closed.by-user');\n\n self._closeWindow();\n\n return Promise.reject(new BraintreeError(errors.MASTERPASS_POPUP_CLOSED));\n }\n\n if (isMissingRequiredPayload(payload)) {\n analytics.sendEvent(self._client, 'masterpass.tokenization.closed.missing-payload');\n\n self._closeWindow();\n\n return Promise.reject(new BraintreeError(errors.MASTERPASS_POPUP_MISSING_REQUIRED_PARAMETERS));\n }\n\n return self._client.request({\n endpoint: 'payment_methods/masterpass_cards',\n method: 'post',\n data: {\n masterpassCard: {\n checkoutResourceUrl: payload.checkout_resource_url,\n requestToken: payload.oauth_token,\n verifierToken: payload.oauth_verifier\n }\n }\n }).then(function (response) {\n self._closeWindow();\n\n if (window.popupBridge) {\n analytics.sendEvent(self._client, 'masterpass.tokenization.success-popupbridge');\n } else {\n analytics.sendEvent(self._client, 'masterpass.tokenization.success');\n }\n\n return response.masterpassCards[0];\n }).catch(function (tokenizeErr) {\n self._closeWindow();\n\n if (window.popupBridge) {\n analytics.sendEvent(self._client, 'masterpass.tokenization.failed-popupbridge');\n } else {\n analytics.sendEvent(self._client, 'masterpass.tokenization.failed');\n }\n\n return Promise.reject(convertToBraintreeError(tokenizeErr, errors.MASTERPASS_ACCOUNT_TOKENIZATION_FAILED));\n });\n };\n\n function isMissingRequiredPayload(payload) {\n return [payload.oauth_verifier, payload.oauth_token, payload.checkout_resource_url].some(function (element) {\n return element == null || element === 'null';\n });\n }\n\n Masterpass.prototype._closeWindow = function () {\n this._authInProgress = false;\n\n this._frameService.close();\n };\n /**\n * Cleanly tear down anything set up by {@link module:braintree-web/masterpass.create|create}.\n * @public\n * @param {callback} [callback] Called on completion. If no callback is provided, `teardown` returns a promise.\n * @example\n * masterpassInstance.teardown();\n * @example data, is a {@link PaymentRequest~paymentPayload|paymentPayload}. If no callback is provided, `tokenize` returns a function that resolves with a {@link PaymentRequestComponent~tokenizePayload|tokenizePayload}.\n * @example\n * paymentRequestInstance.tokenize({\n * details: {\n * total: {\n * label: 'Price',\n * amount: {\n * currency: 'USD',\n * value: '100.00'\n * }\n * }\n * }\n * }).then(function (payload) {\n * // send payload.nonce to server\n *\n * // examine the raw response (with card details removed for security) from the payment request\n * console.log(payload.details.rawPaymentResponse);\n * }).catch(function (err) {\n * if (err.code === 'PAYMENT_REQUEST_CANCELED') {\n * // payment request was canceled by user\n * } else {\n * // an error occurred while processing\n * }\n * });\n * @example payload, is a {@link PayPalCheckout~tokenizePayload|tokenizePayload}. If no callback is provided, the promise resolves with a {@link PayPalCheckout~tokenizePayload|tokenizePayload}.\n * @example\n * paypalCheckoutInstance.startVaultInitiatedCheckout({\n * vaultInitiatedCheckoutPaymentMethodToken: 'nonce-that-represents-a-vaulted-paypal-account',\n * amount: '10.00',\n * currency: 'USD'\n * }).then(function (payload) {\n * // send payload.nonce to your server\n * }).catch(function (err) {\n * if (err.code === 'PAYPAL_POPUP_CLOSED') {\n * // indicates that customer canceled by\n * // manually closing the PayPal popup\n * }\n *\n * // handle other errors\n * });\n *\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n PayPalCheckout.prototype.startVaultInitiatedCheckout = function (options) {\n var missingRequiredParam;\n var self = this;\n\n if (this._vaultInitiatedCheckoutInProgress) {\n analytics.sendEvent(this._clientPromise, 'paypal-checkout.startVaultInitiatedCheckout.error.already-in-progress');\n return Promise.reject(new BraintreeError(errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_IN_PROGRESS));\n }\n\n REQUIRED_PARAMS_FOR_START_VAULT_INITIATED_CHECKOUT.forEach(function (param) {\n if (!options.hasOwnProperty(param)) {\n missingRequiredParam = param;\n }\n });\n\n if (missingRequiredParam) {\n return Promise.reject(new BraintreeError({\n type: errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_PARAM_REQUIRED.type,\n code: errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_PARAM_REQUIRED.code,\n message: 'Required param ' + missingRequiredParam + ' is missing.'\n }));\n }\n\n this._vaultInitiatedCheckoutInProgress = true;\n\n this._addModalBackdrop(options);\n\n options = assign({}, options, {\n flow: 'checkout'\n });\n analytics.sendEvent(this._clientPromise, 'paypal-checkout.startVaultInitiatedCheckout.started');\n return this._waitForVaultInitiatedCheckoutDependencies().then(function () {\n var frameCommunicationPromise = new ExtendedPromise();\n\n var startVaultInitiatedCheckoutPromise = self._createPaymentResource(options, {\n returnUrl: self._constructVaultCheckutUrl('redirect-frame'),\n cancelUrl: self._constructVaultCheckutUrl('cancel-frame')\n }).then(function (response) {\n var redirectUrl = response.paymentResource.redirectUrl;\n\n self._frameService.redirect(redirectUrl);\n\n return frameCommunicationPromise;\n });\n\n self._frameService.open({}, self._createFrameServiceCallback(frameCommunicationPromise));\n\n return startVaultInitiatedCheckoutPromise;\n }).catch(function (err) {\n self._vaultInitiatedCheckoutInProgress = false;\n\n self._removeModalBackdrop();\n\n if (err.code === 'FRAME_SERVICE_FRAME_CLOSED') {\n analytics.sendEvent(self._clientPromise, 'paypal-checkout.startVaultInitiatedCheckout.canceled.by-customer');\n return Promise.reject(new BraintreeError(errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_CANCELED));\n }\n\n if (self._frameService) {\n self._frameService.close();\n }\n\n if (err.code && err.code.indexOf('FRAME_SERVICE_FRAME_OPEN_FAILED') > -1) {\n analytics.sendEvent(self._clientPromise, 'paypal-checkout.startVaultInitiatedCheckout.failed.popup-not-opened');\n return Promise.reject(new BraintreeError({\n code: errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_POPUP_OPEN_FAILED.code,\n type: errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_POPUP_OPEN_FAILED.type,\n message: errors.PAYPAL_START_VAULT_INITIATED_CHECKOUT_POPUP_OPEN_FAILED.message,\n details: {\n originalError: err\n }\n }));\n }\n\n return Promise.reject(err);\n }).then(function (response) {\n self._frameService.close();\n\n self._vaultInitiatedCheckoutInProgress = false;\n\n self._removeModalBackdrop();\n\n analytics.sendEvent(self._clientPromise, 'paypal-checkout.startVaultInitiatedCheckout.succeeded');\n return Promise.resolve(response);\n });\n };\n\n PayPalCheckout.prototype._addModalBackdrop = function (options) {\n if (options.optOutOfModalBackdrop) {\n return;\n }\n\n if (!this._modalBackdrop) {\n this._modalBackdrop = document.createElement('div');\n\n this._modalBackdrop.setAttribute('data-braintree-paypal-vault-initiated-checkout-modal', true);\n\n this._modalBackdrop.style.position = 'fixed';\n this._modalBackdrop.style.top = 0;\n this._modalBackdrop.style.bottom = 0;\n this._modalBackdrop.style.left = 0;\n this._modalBackdrop.style.right = 0;\n this._modalBackdrop.style.zIndex = 9999;\n this._modalBackdrop.style.background = 'black';\n this._modalBackdrop.style.opacity = '0.7';\n\n this._modalBackdrop.addEventListener('click', function () {\n this.focusVaultInitiatedCheckoutWindow();\n }.bind(this));\n }\n\n document.body.appendChild(this._modalBackdrop);\n };\n\n PayPalCheckout.prototype._removeModalBackdrop = function () {\n if (!(this._modalBackdrop && this._modalBackdrop.parentNode)) {\n return;\n }\n\n this._modalBackdrop.parentNode.removeChild(this._modalBackdrop);\n };\n /**\n * Closes the PayPal window if it is opened via `startVaultInitiatedCheckout`.\n * @public\n * @ignore\n * @param {callback} [callback] Gets called when window is closed.\n * @example\n * paypalCheckoutInstance.closeVaultInitiatedCheckoutWindow();\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n PayPalCheckout.prototype.closeVaultInitiatedCheckoutWindow = function () {\n if (this._vaultInitiatedCheckoutInProgress) {\n analytics.sendEvent(this._clientPromise, 'paypal-checkout.startVaultInitiatedCheckout.canceled.by-merchant');\n }\n\n return this._waitForVaultInitiatedCheckoutDependencies().then(function () {\n this._frameService.close();\n }.bind(this));\n };\n /**\n * Focuses the PayPal window if it is opened via `startVaultInitiatedCheckout`.\n * @public\n * @ignore\n * @param {callback} [callback] Gets called when window is focused.\n * @example\n * paypalCheckoutInstance.focusVaultInitiatedCheckoutWindow();\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n PayPalCheckout.prototype.focusVaultInitiatedCheckoutWindow = function () {\n return this._waitForVaultInitiatedCheckoutDependencies().then(function () {\n this._frameService.focus();\n }.bind(this));\n };\n\n PayPalCheckout.prototype._createFrameServiceCallback = function (frameCommunicationPromise) {\n var self = this; // TODO when a merchant integrates an iOS or Android integration\n // with a webview using the web SDK, we will have to add popupbridge\n // support\n\n return function (err, payload) {\n if (err) {\n frameCommunicationPromise.reject(err);\n } else if (payload) {\n self._frameService.redirect(self._loadingFrameUrl);\n\n self.tokenizePayment({\n paymentToken: payload.token,\n payerID: payload.PayerID,\n paymentID: payload.paymentId\n }).then(function (res) {\n frameCommunicationPromise.resolve(res);\n }).catch(function (tokenizationError) {\n frameCommunicationPromise.reject(tokenizationError);\n });\n }\n };\n };\n\n PayPalCheckout.prototype._waitForVaultInitiatedCheckoutDependencies = function () {\n var self = this;\n return this._clientPromise.then(function () {\n return self._frameServicePromise;\n });\n };\n\n PayPalCheckout.prototype._constructVaultCheckutUrl = function (frameName) {\n var serviceId = this._frameService._serviceId;\n return this._assetsUrl + '/html/' + frameName + useMin(this._isDebug) + '.html?channel=' + serviceId;\n };\n /**\n * Tokenizes the authorize data from the PayPal JS SDK when completing a buyer approval flow.\n * When a {@link callback} is defined, invokes the callback with {@link PayPalCheckout~tokenizePayload|tokenizePayload} and returns undefined. Otherwise, returns a Promise that resolves with a {@link PayPalCheckout~tokenizePayload|tokenizePayload}.\n * @public\n * @param {object} tokenizeOptions Tokens and IDs required to tokenize the payment.\n * @param {string} tokenizeOptions.payerId Payer ID returned by PayPal `onApproved` callback.\n * @param {string} [tokenizeOptions.paymentId] Payment ID returned by PayPal `onApproved` callback.\n * @param {string} [tokenizeOptions.billingToken] Billing Token returned by PayPal `onApproved` callback.\n * @param {boolean} [tokenizeOptions.vault=true] Whether or not to vault the resulting PayPal account (if using a client token generated with a customer id and the vault flow).\n * @param {callback} [callback] The second argument, payload, is a {@link PayPalCheckout~tokenizePayload|tokenizePayload}. If no callback is provided, the promise resolves with a {@link PayPalCheckout~tokenizePayload|tokenizePayload}.\n * @example id, is a the PayPal client id. If no callback is provided, the promise resolves with the PayPal client id.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * paypalCheckoutInstance.getClientId().then(function (id) {\n * var script = document.createElement('script');\n *\n * script.src = 'https://www.paypal.com/sdk/js?client-id=' + id;\n * script.onload = function () {\n * // setup the PayPal SDK\n * };\n *\n * document.body.appendChild(script);\n * });\n */\n\n\n PayPalCheckout.prototype.getClientId = function () {\n return this._clientPromise.then(function (client) {\n return client.getConfiguration().gatewayConfiguration.paypal.clientId;\n });\n };\n /**\n * Resolves when the PayPal SDK has been successfully loaded onto the page.\n * @public\n * @param {object} [options] A configuration object to modify the query params and data-attributes on the PayPal SDK. A subset of the parameters are listed below. For a full list of query params, see the [PayPal docs](https://developer.paypal.com/docs/checkout/reference/customize-sdk/?mark=query#query-parameters).\n * @param {string} [options.client-id] By default, this will be the client id associated with the authorization used to create the Braintree component. When used in conjunction with passing `authorization` when creating the PayPal Checkout component, you can speed up the loading of the PayPal SDK.\n * @param {string} [options.intent=\"authorize\"] By default, the PayPal SDK defaults to an intent of `capture`. Since the default intent when calling {@link PayPalCheckout#createPayment|`createPayment`} is `authorize`, the PayPal SDK will be loaded with `intent=authorize`. If you wish to use a different intent when calling {@link PayPalCheckout#createPayment|`createPayment`}, make sure it matches here. If `sale` is used, it will be converted to `capture` for the PayPal SDK. If the `vault: true` param is used, `tokenize` will be passed as the default intent.\n * @param {string} [options.currency=\"USD\"] If a currency is passed in {@link PayPalCheckout#createPayment|`createPayment`}, it must match the currency passed here.\n * @param {boolean} [options.vault] Must be `true` when using `flow: vault` in {@link PayPalCheckout#createPayment|`createPayment`}.\n * @param {string} [options.components=buttons] By default, the Braintree SDK will only load the PayPal smart buttons component. If you would like to load just the [messages component](https://developer.paypal.com/docs/business/checkout/add-capabilities/credit-messaging/), pass `messages`. If you would like to load both, pass `buttons,messages`\n * @param {object} [options.dataAttributes] The data attributes to apply to the script. Any data attribute can be passed. A subset of the parameters are listed below. For a full list of data attributes, see the [PayPal docs](https://developer.paypal.com/docs/checkout/reference/customize-sdk/#script-parameters).\n * @param {string} [options.dataAttributes.data-client-token] The client token to use in the script. (usually not needed)\n * @param {string} [options.dataAttributes.csp-nonce] See the [PayPal docs about content security nonces](https://developer.paypal.com/docs/checkout/reference/customize-sdk/#csp-nonce).\n * @param {callback} [callback] Called when the PayPal SDK has been loaded onto the page. The second argument is the PayPal Checkout instance. If no callback is provided, the promise resolves with the PayPal Checkout instance when the PayPal SDK has been loaded onto the page.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example data, is a {@link PayPal~tokenizePayload|tokenizePayload}.\n * @example\n * data, is a {@link ThreeDSecure~verifyPayload|verifyPayload}. If no callback is provided, it will return a promise that resolves {@link ThreeDSecure~verifyPayload|verifyPayload}.\n \n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * data, is a {@link ThreeDSecure~prepareLookupPayload|prepareLookupPayload}. If no callback is provided, it will return a promise that resolves {@link ThreeDSecure~prepareLookupPayload|prepareLookupPayload}.\n \n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * data, is a {@link UnionPay#fetchCapabilitiesPayload fetchCapabilitiesPayload}. If no callback is provided, `fetchCapabilities` returns a promise that resolves with a {@link UnionPay#fetchCapabilitiesPayload fetchCapabilitiesPayload}.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n UnionPay.prototype.fetchCapabilities = function (options) {\n var self = this;\n var client = this._options.client;\n var cardNumber = options.card ? options.card.number : null;\n var hostedFields = options.hostedFields;\n\n if (cardNumber && hostedFields) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_CARD_AND_HOSTED_FIELDS_INSTANCES));\n } else if (cardNumber) {\n return client.request({\n method: 'get',\n endpoint: 'payment_methods/credit_cards/capabilities',\n data: {\n _meta: {\n source: 'unionpay'\n },\n creditCard: {\n number: cardNumber\n }\n }\n }).then(function (response) {\n analytics.sendEvent(client, 'unionpay.capabilities-received');\n return response;\n }).catch(function (err) {\n var status = err.details && err.details.httpStatus;\n analytics.sendEvent(client, 'unionpay.capabilities-failed');\n\n if (status === 403) {\n return Promise.reject(err);\n }\n\n return Promise.reject(new BraintreeError({\n type: errors.UNIONPAY_FETCH_CAPABILITIES_NETWORK_ERROR.type,\n code: errors.UNIONPAY_FETCH_CAPABILITIES_NETWORK_ERROR.code,\n message: errors.UNIONPAY_FETCH_CAPABILITIES_NETWORK_ERROR.message,\n details: {\n originalError: err\n }\n }));\n });\n } else if (hostedFields) {\n if (!hostedFields._bus) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_HOSTED_FIELDS_INSTANCE_INVALID));\n }\n\n return self._initializeHostedFields().then(function () {\n return new Promise(function (resolve, reject) {\n self._bus.emit(events.HOSTED_FIELDS_FETCH_CAPABILITIES, {\n hostedFields: hostedFields\n }, function (response) {\n if (response.err) {\n reject(new BraintreeError(response.err));\n return;\n }\n\n resolve(response.payload);\n });\n });\n });\n }\n\n return Promise.reject(new BraintreeError(errors.UNIONPAY_CARD_OR_HOSTED_FIELDS_INSTANCE_REQUIRED));\n };\n /**\n * @typedef {object} UnionPay~enrollPayload\n * @property {string} enrollmentId UnionPay enrollment ID. This value should be passed to `tokenize`.\n * @property {boolean} smsCodeRequired UnionPay `smsCodeRequired` flag.\n * true - the user will receive an SMS code that needs to be supplied for tokenization.\n * false - the card can be immediately tokenized.\n */\n\n /**\n * Enrolls a UnionPay card. Use {@link UnionPay#fetchCapabilities|fetchCapabilities} to determine if the SMS enrollment process is required.\n * @public\n * @param {object} options UnionPay enrollment options:\n * @param {object} [options.card] The card to enroll. Required if you are not using the `hostedFields` option.\n * @param {string} options.card.number The card number.\n * @param {string} [options.card.expirationDate] The card's expiration date. May be in the form `MM/YY` or `MM/YYYY`. When defined `expirationMonth` and `expirationYear` are ignored.\n * @param {string} [options.card.expirationMonth] The card's expiration month. This should be used with the `expirationYear` parameter. When `expirationDate` is defined this parameter is ignored.\n * @param {string} [options.card.expirationYear] The card's expiration year. This should be used with the `expirationMonth` parameter. When `expirationDate` is defined this parameter is ignored.\n * @param {HostedFields} [options.hostedFields] The Hosted Fields instance used to collect card data. Required if you are not using the `card` option.\n * @param {object} options.mobile The mobile information collected from the customer.\n * @param {string} options.mobile.countryCode The country code of the customer's mobile phone number.\n * @param {string} options.mobile.number The customer's mobile phone number.\n * @param {callback} [callback] The second argument, data, is a {@link UnionPay~enrollPayload|enrollPayload}. If no callback is provided, `enroll` returns a promise that resolves with {@link UnionPay~enrollPayload|enrollPayload}.\n * @returns {void}\n */\n\n\n UnionPay.prototype.enroll = function (options) {\n var self = this;\n var client = this._options.client;\n var card = options.card;\n var mobile = options.mobile;\n var hostedFields = options.hostedFields;\n var data;\n\n if (!mobile) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_MISSING_MOBILE_PHONE_DATA));\n }\n\n if (hostedFields) {\n if (!hostedFields._bus) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_HOSTED_FIELDS_INSTANCE_INVALID));\n } else if (card) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_CARD_AND_HOSTED_FIELDS_INSTANCES));\n }\n\n return new Promise(function (resolve, reject) {\n self._initializeHostedFields().then(function () {\n self._bus.emit(events.HOSTED_FIELDS_ENROLL, {\n hostedFields: hostedFields,\n mobile: mobile\n }, function (response) {\n if (response.err) {\n reject(new BraintreeError(response.err));\n return;\n }\n\n resolve(response.payload);\n });\n });\n });\n } else if (card && card.number) {\n data = {\n _meta: {\n source: 'unionpay'\n },\n unionPayEnrollment: {\n number: card.number,\n mobileCountryCode: mobile.countryCode,\n mobileNumber: mobile.number\n }\n };\n\n if (card.expirationDate) {\n data.unionPayEnrollment.expirationDate = card.expirationDate;\n } else if (card.expirationMonth || card.expirationYear) {\n if (card.expirationMonth && card.expirationYear) {\n data.unionPayEnrollment.expirationYear = card.expirationYear;\n data.unionPayEnrollment.expirationMonth = card.expirationMonth;\n } else {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_EXPIRATION_DATE_INCOMPLETE));\n }\n }\n\n return client.request({\n method: 'post',\n endpoint: 'union_pay_enrollments',\n data: data\n }).then(function (response) {\n analytics.sendEvent(client, 'unionpay.enrollment-succeeded');\n return {\n enrollmentId: response.unionPayEnrollmentId,\n smsCodeRequired: response.smsCodeRequired\n };\n }).catch(function (err) {\n var error;\n var status = err.details && err.details.httpStatus;\n\n if (status === 403) {\n error = err;\n } else if (status < 500) {\n error = new BraintreeError(errors.UNIONPAY_ENROLLMENT_CUSTOMER_INPUT_INVALID);\n error.details = {\n originalError: err\n };\n } else {\n error = new BraintreeError(errors.UNIONPAY_ENROLLMENT_NETWORK_ERROR);\n error.details = {\n originalError: err\n };\n }\n\n analytics.sendEvent(client, 'unionpay.enrollment-failed');\n return Promise.reject(error);\n });\n }\n\n return Promise.reject(new BraintreeError(errors.UNIONPAY_CARD_OR_HOSTED_FIELDS_INSTANCE_REQUIRED));\n };\n /**\n * @typedef {object} UnionPay~tokenizePayload\n * @property {string} nonce The payment method nonce.\n * @property {string} type Always CreditCard.\n * @property {object} details Additional account details:\n * @property {string} details.cardType Type of card, ex: Visa, MasterCard.\n * @property {string} details.lastFour Last four digits of card number.\n * @property {string} details.lastTwo Last two digits of card number.\n * @property {string} description A human-readable description.\n */\n\n /**\n * Tokenizes a UnionPay card and returns a nonce payload.\n * @public\n * @param {object} options UnionPay tokenization options:\n * @param {object} [options.card] The card to enroll. Required if you are not using the `hostedFields` option.\n * @param {string} options.card.number The card number.\n * @param {string} [options.card.expirationDate] The card's expiration date. May be in the form `MM/YY` or `MM/YYYY`. When defined `expirationMonth` and `expirationYear` are ignored.\n * @param {string} [options.card.expirationMonth] The card's expiration month. This should be used with the `expirationYear` parameter. When `expirationDate` is defined this parameter is ignored.\n * @param {string} [options.card.expirationYear] The card's expiration year. This should be used with the `expirationMonth` parameter. When `expirationDate` is defined this parameter is ignored.\n * @param {string} [options.card.cvv] The card's security number.\n * @param {HostedFields} [options.hostedFields] The Hosted Fields instance used to collect card data. Required if you are not using the `card` option.\n * @param {string} options.enrollmentId The enrollment ID from {@link UnionPay#enroll}.\n * @param {string} [options.smsCode] The SMS code received from the user if {@link UnionPay#enroll} payload have `smsCodeRequired`. if `smsCodeRequired` is false, smsCode should not be passed.\n * @param {callback} [callback] The second argument, data, is a {@link UnionPay~tokenizePayload|tokenizePayload}. If no callback is provided, `tokenize` returns a promise that resolves with a {@link UnionPay~tokenizePayload|tokenizePayload}.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n UnionPay.prototype.tokenize = function (options) {\n var data;\n var self = this;\n var client = this._options.client;\n var card = options.card;\n var hostedFields = options.hostedFields;\n\n if (card && hostedFields) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_CARD_AND_HOSTED_FIELDS_INSTANCES));\n } else if (card) {\n data = {\n _meta: {\n source: 'unionpay'\n },\n creditCard: {\n number: options.card.number,\n options: {\n unionPayEnrollment: {\n id: options.enrollmentId\n }\n }\n }\n };\n\n if (options.smsCode) {\n data.creditCard.options.unionPayEnrollment.smsCode = options.smsCode;\n }\n\n if (card.expirationDate) {\n data.creditCard.expirationDate = card.expirationDate;\n } else if (card.expirationMonth && card.expirationYear) {\n data.creditCard.expirationYear = card.expirationYear;\n data.creditCard.expirationMonth = card.expirationMonth;\n }\n\n if (options.card.cvv) {\n data.creditCard.cvv = options.card.cvv;\n }\n\n return client.request({\n method: 'post',\n endpoint: 'payment_methods/credit_cards',\n data: data\n }).then(function (response) {\n var tokenizedCard = response.creditCards[0];\n delete tokenizedCard.consumed;\n delete tokenizedCard.threeDSecureInfo;\n analytics.sendEvent(client, 'unionpay.nonce-received');\n return tokenizedCard;\n }).catch(function (err) {\n var error;\n var status = err.details && err.details.httpStatus;\n analytics.sendEvent(client, 'unionpay.nonce-failed');\n\n if (status === 403) {\n error = err;\n } else if (status < 500) {\n error = new BraintreeError(errors.UNIONPAY_FAILED_TOKENIZATION);\n error.details = {\n originalError: err\n };\n } else {\n error = new BraintreeError(errors.UNIONPAY_TOKENIZATION_NETWORK_ERROR);\n error.details = {\n originalError: err\n };\n }\n\n return Promise.reject(error);\n });\n } else if (hostedFields) {\n if (!hostedFields._bus) {\n return Promise.reject(new BraintreeError(errors.UNIONPAY_HOSTED_FIELDS_INSTANCE_INVALID));\n }\n\n return new Promise(function (resolve, reject) {\n self._initializeHostedFields().then(function () {\n self._bus.emit(events.HOSTED_FIELDS_TOKENIZE, options, function (response) {\n if (response.err) {\n reject(new BraintreeError(response.err));\n return;\n }\n\n resolve(response.payload);\n });\n });\n });\n }\n\n return Promise.reject(new BraintreeError(errors.UNIONPAY_CARD_OR_HOSTED_FIELDS_INSTANCE_REQUIRED));\n };\n /**\n * Cleanly remove anything set up by {@link module:braintree-web/unionpay.create|create}. This only needs to be called when using UnionPay with Hosted Fields.\n * @public\n * @param {callback} [callback] Called on completion. If no callback is provided, returns a promise.\n * @example\n * unionpayInstance.teardown();\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n UnionPay.prototype.teardown = function () {\n if (this._bus) {\n this._hostedFieldsFrame.parentNode.removeChild(this._hostedFieldsFrame);\n\n this._bus.teardown();\n }\n\n convertMethodsToError(this, methods(UnionPay.prototype));\n return Promise.resolve();\n };\n\n UnionPay.prototype._initializeHostedFields = function () {\n var assetsUrl, isDebug;\n var componentId = uuid();\n var self = this;\n\n if (this._hostedFieldsInitializePromise) {\n return this._hostedFieldsInitializePromise;\n }\n\n this._hostedFieldsInitializePromise = new Promise(function (resolve) {\n assetsUrl = self._options.client.getConfiguration().gatewayConfiguration.assetsUrl;\n isDebug = self._options.client.getConfiguration().isDebug;\n self._bus = new Bus({\n channel: componentId,\n verifyDomain: isVerifiedDomain\n });\n self._hostedFieldsFrame = iFramer({\n name: constants.HOSTED_FIELDS_FRAME_NAME + '_' + componentId,\n src: assetsUrl + '/web/' + VERSION + '/html/unionpay-hosted-fields-frame' + useMin(isDebug) + '.html',\n height: 0,\n width: 0\n });\n\n self._bus.on(BUS_CONFIGURATION_REQUEST_EVENT, function (reply) {\n reply(self._options.client);\n resolve();\n });\n\n document.body.appendChild(self._hostedFieldsFrame);\n });\n return this._hostedFieldsInitializePromise;\n };\n\n module.exports = wrapPromise.wrapPrototype(UnionPay);\n }, {\n \"../../lib/analytics\": 125,\n \"../../lib/braintree-error\": 130,\n \"../../lib/constants\": 132,\n \"../../lib/convert-methods-to-error\": 133,\n \"../../lib/is-verified-domain\": 159,\n \"../../lib/methods\": 161,\n \"../../lib/promise\": 163,\n \"../../lib/use-min\": 166,\n \"./constants\": 203,\n \"./errors\": 204,\n \"@braintree/iframer\": 40,\n \"@braintree/uuid\": 44,\n \"@braintree/wrap-promise\": 48,\n \"framebus\": 57\n }],\n 206: [function (_dereq_, module, exports) {\n 'use strict';\n\n module.exports = {\n PLAID_LINK_JS: 'https://cdn.plaid.com/link/v2/stable/link-initialize.js'\n };\n }, {}],\n 207: [function (_dereq_, module, exports) {\n 'use strict';\n /**\n * @name BraintreeError.Us Bank Account - Creation Error Codes\n * @description Errors that occur when [creating the Us Bank Account component](./module-braintree-web_us-bank-account.html#.create).\n * @property {MERCHANT} US_BANK_ACCOUNT_NOT_ENABLED Occurs when US Bank Account is not enabled in the Braintree control panel.\n */\n\n /**\n * @name BraintreeError.Us Bank Account - tokenize Error Codes\n * @description Errors that occur when using the [`tokenize` method](./UsBankAccount.html#tokenize).\n * @property {MERCHANT} US_BANK_ACCOUNT_OPTION_REQUIRED Occurs when a required option is not passed.\n * @property {MERCHANT} US_BANK_ACCOUNT_MUTUALLY_EXCLUSIVE_OPTIONS Occurs when 1 or more incompatible options are passed.\n * @property {NETWORK} US_BANK_ACCOUNT_LOGIN_LOAD_FAILED Occurs when bank login flow fails.\n * @property {CUSTOMER} US_BANK_ACCOUNT_LOGIN_CLOSED Occurs when bank login window is closed.\n * @property {MERCHANT} US_BANK_ACCOUNT_LOGIN_REQUEST_ACTIVE Occurs when a bank login flow is already active.\n * @property {NETWORK} US_BANK_ACCOUNT_TOKENIZATION_NETWORK_ERROR Occurs when payment details could not be tokenized.\n * @property {CUSTOMER} US_BANK_ACCOUNT_FAILED_TOKENIZATION Occurs when payment details failed to be tokenized.\n * @property {MERCHANT} US_BANK_ACCOUNT_BANK_LOGIN_NOT_ENABLED Occurs when bank login flow is not enabled in the Braintree control panel.\n */\n\n var BraintreeError = _dereq_('../lib/braintree-error');\n\n module.exports = {\n US_BANK_ACCOUNT_OPTION_REQUIRED: {\n type: BraintreeError.types.MERCHANT,\n code: 'US_BANK_ACCOUNT_OPTION_REQUIRED'\n },\n US_BANK_ACCOUNT_MUTUALLY_EXCLUSIVE_OPTIONS: {\n type: BraintreeError.types.MERCHANT,\n code: 'US_BANK_ACCOUNT_MUTUALLY_EXCLUSIVE_OPTIONS'\n },\n US_BANK_ACCOUNT_LOGIN_LOAD_FAILED: {\n type: BraintreeError.types.NETWORK,\n code: 'US_BANK_ACCOUNT_LOGIN_LOAD_FAILED',\n message: 'Bank login flow failed to load.'\n },\n US_BANK_ACCOUNT_LOGIN_CLOSED: {\n type: BraintreeError.types.CUSTOMER,\n code: 'US_BANK_ACCOUNT_LOGIN_CLOSED',\n message: 'Customer closed bank login flow before authorizing.'\n },\n US_BANK_ACCOUNT_LOGIN_REQUEST_ACTIVE: {\n type: BraintreeError.types.MERCHANT,\n code: 'US_BANK_ACCOUNT_LOGIN_REQUEST_ACTIVE',\n message: 'Another bank login tokenization request is active.'\n },\n US_BANK_ACCOUNT_TOKENIZATION_NETWORK_ERROR: {\n type: BraintreeError.types.NETWORK,\n code: 'US_BANK_ACCOUNT_TOKENIZATION_NETWORK_ERROR',\n message: 'A tokenization network error occurred.'\n },\n US_BANK_ACCOUNT_FAILED_TOKENIZATION: {\n type: BraintreeError.types.CUSTOMER,\n code: 'US_BANK_ACCOUNT_FAILED_TOKENIZATION',\n message: 'The supplied data failed tokenization.'\n },\n US_BANK_ACCOUNT_NOT_ENABLED: {\n type: BraintreeError.types.MERCHANT,\n code: 'US_BANK_ACCOUNT_NOT_ENABLED',\n message: 'US bank account is not enabled.'\n },\n US_BANK_ACCOUNT_BANK_LOGIN_NOT_ENABLED: {\n type: BraintreeError.types.MERCHANT,\n code: 'US_BANK_ACCOUNT_BANK_LOGIN_NOT_ENABLED',\n message: 'Bank login is not enabled.'\n }\n };\n }, {\n \"../lib/braintree-error\": 130\n }],\n 208: [function (_dereq_, module, exports) {\n 'use strict';\n /**\n * @module braintree-web/us-bank-account\n * @description This module is for accepting payments of US bank accounts.\n */\n\n var basicComponentVerification = _dereq_('../lib/basic-component-verification');\n\n var BraintreeError = _dereq_('../lib/braintree-error');\n\n var createDeferredClient = _dereq_('../lib/create-deferred-client');\n\n var createAssetsUrl = _dereq_('../lib/create-assets-url');\n\n var errors = _dereq_('./errors');\n\n var USBankAccount = _dereq_('./us-bank-account');\n\n var VERSION = \"3.78.1\";\n\n var Promise = _dereq_('../lib/promise');\n\n var wrapPromise = _dereq_('@braintree/wrap-promise');\n /**\n * @static\n * @function create\n * @param {object} options Creation options:\n * @param {Client} [options.client] A {@link Client} instance.\n * @param {string} [options.authorization] A tokenizationKey or clientToken. Can be used in place of `options.client`.\n * @param {callback} [callback] The second argument, `data`, is the {@link USBankAccount} instance. If no callback is provided, `create` returns a promise that resolves with the {@link USBankAccount} instance.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n function create(options) {\n var name = 'US Bank Account';\n return basicComponentVerification.verify({\n name: name,\n client: options.client,\n authorization: options.authorization\n }).then(function () {\n return createDeferredClient.create({\n authorization: options.authorization,\n client: options.client,\n debug: options.debug,\n assetsUrl: createAssetsUrl.create(options.authorization),\n name: name\n });\n }).then(function (client) {\n var usBankAccount;\n options.client = client;\n usBankAccount = options.client.getConfiguration().gatewayConfiguration.usBankAccount;\n\n if (!usBankAccount) {\n return Promise.reject(new BraintreeError(errors.US_BANK_ACCOUNT_NOT_ENABLED));\n }\n\n return new USBankAccount(options);\n });\n }\n\n module.exports = {\n create: wrapPromise(create),\n\n /**\n * @description The current version of the SDK, i.e. `{@pkg version}`.\n * @type {string}\n */\n VERSION: VERSION\n };\n }, {\n \"../lib/basic-component-verification\": 128,\n \"../lib/braintree-error\": 130,\n \"../lib/create-assets-url\": 135,\n \"../lib/create-deferred-client\": 137,\n \"../lib/promise\": 163,\n \"./errors\": 207,\n \"./us-bank-account\": 209,\n \"@braintree/wrap-promise\": 48\n }],\n 209: [function (_dereq_, module, exports) {\n 'use strict';\n\n var BraintreeError = _dereq_('../lib/braintree-error');\n\n var constants = _dereq_('./constants');\n\n var errors = _dereq_('./errors');\n\n var sharedErrors = _dereq_('../lib/errors');\n\n var analytics = _dereq_('../lib/analytics');\n\n var once = _dereq_('../lib/once');\n\n var convertMethodsToError = _dereq_('../lib/convert-methods-to-error');\n\n var methods = _dereq_('../lib/methods');\n\n var Promise = _dereq_('../lib/promise');\n\n var wrapPromise = _dereq_('@braintree/wrap-promise');\n\n var TOKENIZE_BANK_DETAILS_MUTATION = createGraphQLMutation('UsBankAccount');\n var TOKENIZE_BANK_LOGIN_MUTATION = createGraphQLMutation('UsBankLogin');\n /**\n * @typedef {object} USBankAccount~tokenizePayload\n * @property {string} nonce The payment method nonce.\n * @property {string} type The payment method type, always `us_bank_account`.\n * @property {object} details Additional account details. Currently empty.\n */\n\n /**\n * @class\n * @param {object} options See {@link module:braintree-web/us-bank-account.create|us-bank-account.create}.\n * @classdesc This class represents a US Bank Account component. Instances of this class can tokenize raw bank details or present a bank login. You cannot use this constructor directly. Use {@link module:braintree-web/us-bank-account.create|braintree.us-bank-account.create} instead.\n */\n\n function USBankAccount(options) {\n this._client = options.client;\n this._isTokenizingBankLogin = false;\n analytics.sendEvent(this._client, 'usbankaccount.initialized');\n }\n /**\n * Tokenizes bank information to return a payment method nonce. You can tokenize bank details by providing information like account and routing numbers. You can also tokenize with a bank login UI that prompts the customer to log into their bank account.\n * @public\n * @param {object} options All tokenization options for the US Bank Account component.\n * @param {string} options.mandateText A string for proof of customer authorization. For example, `'I authorize Braintree to debit my bank account on behalf of My Online Store.'`.\n * @param {object} [options.bankDetails] Bank detail information (such as account and routing numbers). `bankDetails` or `bankLogin` option must be provided.\n * @param {string} options.bankDetails.routingNumber The customer's bank routing number, such as `'307075259'`.\n * @param {string} options.bankDetails.accountNumber The customer's bank account number, such as `'999999999'`.\n * @param {string} options.bankDetails.accountType The customer's bank account type. Must be `'checking'` or `'savings'`.\n * @param {string} options.bankDetails.ownershipType The customer's bank account ownership type. Must be `'personal'` or `'business'`.\n * @param {string} [options.bankDetails.firstName] The customer's first name. Required when account ownership type is `personal`.\n * @param {string} [options.bankDetails.lastName] The customer's last name. Required when account ownership type is `personal`.\n * @param {string} [options.bankDetails.businessName] The customer's business name. Required when account ownership type is `business`.\n * @param {object} options.bankDetails.billingAddress The customer's billing address.\n * @param {string} options.bankDetails.billingAddress.streetAddress The street address for the customer's billing address, such as `'123 Fake St'`.\n * @param {string} [options.bankDetails.billingAddress.extendedAddress] The extended street address for the customer's billing address, such as `'Apartment B'`.\n * @param {string} options.bankDetails.billingAddress.locality The locality for the customer's billing address. This is typically a city, such as `'San Francisco'`.\n * @param {string} options.bankDetails.billingAddress.region The region for the customer's billing address. This is typically a state, such as `'CA'`.\n * @param {string} options.bankDetails.billingAddress.postalCode The postal code for the customer's billing address. This is typically a ZIP code, such as `'94119'`.\n * @param {object} [options.bankLogin] Bank login information. `bankLogin` or `bankDetails` option must be provided.\n * @param {string} options.bankLogin.displayName Display name for the bank login UI, such as `'My Store'`.\n * @param {string} options.bankLogin.ownershipType The customer's bank account ownership type. Must be `'personal'` or `'business'`.\n * @param {string} [options.bankLogin.firstName] The customer's first name. Required when account ownership type is `personal`.\n * @param {string} [options.bankLogin.lastName] The customer's last name. Required when account ownership type is `personal`.\n * @param {string} [options.bankLogin.businessName] The customer's business name. Required when account ownership type is `business`.\n * @param {object} options.bankLogin.billingAddress The customer's billing address.\n * @param {string} options.bankLogin.billingAddress.streetAddress The street address for the customer's billing address, such as `'123 Fake St'`.\n * @param {string} [options.bankLogin.billingAddress.extendedAddress] The extended street address for the customer's billing address, such as `'Apartment B'`.\n * @param {string} options.bankLogin.billingAddress.locality The locality for the customer's billing address. This is typically a city, such as `'San Francisco'`.\n * @param {string} options.bankLogin.billingAddress.region The region for the customer's billing address. This is typically a state, such as `'CA'`.\n * @param {string} options.bankLogin.billingAddress.postalCode The postal code for the customer's billing address. This is typically a ZIP code, such as `'94119'`.\n * @param {callback} [callback] The second argument, data, is a {@link USBankAccount~tokenizePayload|tokenizePayload}. If no callback is provided, `tokenize` returns a promise that resolves with {@link USBankAccount~tokenizePayload|tokenizePayload}.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * data, is a {@link Venmo~tokenizePayload|tokenizePayload}. If no callback is provided, the method will return a Promise that resolves with a {@link Venmo~tokenizePayload|tokenizePayload}.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * button.addEventListener('click', function () {\n * // Disable the button so that we don't attempt to open multiple popups.\n * button.setAttribute('disabled', 'disabled');\n *\n * // Because tokenize opens a new window, this must be called\n * // as a result of a user action, such as a button click.\n * venmoInstance.tokenize().then(function (payload) {\n * // Submit payload.nonce to your server\n * // Use payload.username to get the Venmo username and display any UI\n * }).catch(function (tokenizeError) {\n * // Handle flow errors or premature flow closure\n * switch (tokenizeErr.code) {\n * case 'VENMO_APP_CANCELED':\n * console.log('User canceled Venmo flow.');\n * break;\n * case 'VENMO_CANCELED':\n * console.log('User canceled Venmo, or Venmo app is not available.');\n * break;\n * default:\n * console.error('Error!', tokenizeErr);\n * }\n * }).then(function () {\n * button.removeAttribute('disabled');\n * });\n * });\n */\n\n\n Venmo.prototype.tokenize = function (options) {\n var self = this;\n var tokenizationPromise;\n options = options || {};\n\n if (this._tokenizationInProgress === true) {\n return Promise.reject(new BraintreeError(errors.VENMO_TOKENIZATION_REQUEST_ACTIVE));\n }\n\n this._tokenizationInProgress = true;\n\n if (this._useDesktopFlow) {\n // for the desktop flow, we create a venmo payment\n // context and then present a qr code modal to the\n // customer and they will open up their venmo app\n // and scan it and approve the purchase on their\n // mobile device. The sdk will start polling\n // in order to determine when the status of the\n // payment context has updated and then pass the\n // resulting nonce back to the merchant.\n tokenizationPromise = this._tokenizeForDesktop(options);\n } else if (this._cannotHaveReturnUrls) {\n // in the manual return strategy, we create the payment\n // context on initialization, then continually poll once\n // the app switch begins until we get a response indiciating\n // the payment context was approved by the customer on the\n // Venmo app. The payment context response also includes a\n // nonce. There are 2 cases where we use the manual return\n // strategy:\n // 1. the sdk is instantiated in an iframe, because\n // the venmo app is unable to redirect automatically\n // when that is the case so we rely on the customer\n // to do a manual redirect and continunally poll for\n // updates on the payment context to get the nonce\n // 2. same deal for when `requireManualReturn` is configured\n tokenizationPromise = this._tokenizeForMobileWithManualReturn();\n } else {\n // the default mobile flow is to app switch to the\n // venmo app, and then have the venmo app switch\n // back to the page with the venmo nonce details\n // encoded into the hash portion of the url. If\n // `paymentMethodUsage` is provided when instantiating\n // the sdk, we also create a payment context and pass\n // the resource id to the Venmo app during the app switch.\n // Once we get a succesful return, we ping the payment\n // context query to get any additional data needed\n // to send back to the merchant.\n tokenizationPromise = this._tokenizeForMobileWithHashChangeListeners(options);\n }\n\n return tokenizationPromise.then(function (payload) {\n return self._createPromise.then(function (client) {\n return self._createVenmoPaymentContext(client);\n }).then(function () {\n self._tokenizationInProgress = false;\n return formatTokenizePayload(payload);\n });\n }).catch(function (err) {\n return self._createPromise.then(function (client) {\n return self._createVenmoPaymentContext(client);\n }).then(function () {\n self._tokenizationInProgress = false;\n return Promise.reject(err);\n });\n });\n };\n /**\n * Cancels the venmo tokenization process\n *\n * @public\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n * @example\n * venmoTokenizeButton.addEventListener('click', function () {\n * venmoInstance.tokenize().then(function (payload) {\n * // handle payload\n * }).catch(function (err) {\n * if (err.code === 'VENMO_TOKENIZATION_CANCELED_BY_MERCHANT') {\n * // tokenization was canceled by calling cancelTokenization\n * }\n * });\n * });\n *\n * venmoCancelButton.addEventListener('click', function () {\n * // Hide the button when the venmo flow is not in progress\n * venmoCancelButton.style.display = \"none\";\n *\n * venmoInstance.cancelTokenization().then(function () {\n * // done canceling the flow\n * }).catch(function (err) {\n * // should only get here if there is no tokenization in progress\n * });\n * });\n */\n\n\n Venmo.prototype.cancelTokenization = function () {\n if (!this._tokenizationInProgress) {\n return Promise.reject(new BraintreeError(errors.VENMO_TOKENIZATION_REQUEST_NOT_ACTIVE));\n }\n\n this._removeVisibilityEventListener(); // important to reject the tokenization promise first\n // so the tokenize method rejects with this error\n // rather than a customer canceled error in the mobile\n // polling and desktop flows\n\n\n if (this._tokenizePromise) {\n this._tokenizePromise.reject(new BraintreeError(errors.VENMO_TOKENIZATION_CANCELED_BY_MERCHANT));\n }\n\n return Promise.all([this._cancelMobilePaymentContext(), this._cancelVenmoDesktopContext()]);\n };\n\n Venmo.prototype._queryPaymentContextStatus = function (id) {\n var self = this;\n return this._createPromise.then(function (client) {\n var query = self._shouldUseLegacyFlow ? graphqlQueries.LEGACY_VENMO_PAYMENT_CONTEXT_STATUS_QUERY : graphqlQueries.VENMO_PAYMENT_CONTEXT_STATUS_QUERY;\n return client.request({\n api: 'graphQLApi',\n data: {\n query: query,\n variables: {\n id: id\n }\n }\n });\n }).then(function (response) {\n return response.data.node;\n });\n };\n\n Venmo.prototype._pollForStatusChange = function () {\n var self = this;\n\n if (Date.now() > self._mobilePollingContextExpiresIn) {\n return Promise.reject(new BraintreeError(errors.VENMO_MOBILE_POLLING_TOKENIZATION_TIMEOUT));\n }\n\n return this._queryPaymentContextStatus(this._venmoPaymentContextId).catch(function (networkError) {\n return Promise.reject(new BraintreeError({\n type: errors.VENMO_MOBILE_POLLING_TOKENIZATION_NETWORK_ERROR.type,\n code: errors.VENMO_MOBILE_POLLING_TOKENIZATION_NETWORK_ERROR.code,\n message: errors.VENMO_MOBILE_POLLING_TOKENIZATION_NETWORK_ERROR.message,\n details: {\n originalError: networkError\n }\n }));\n }).then(function (node) {\n var newStatus = node.status;\n\n if (newStatus !== self._venmoPaymentContextStatus) {\n self._venmoPaymentContextStatus = newStatus;\n analytics.sendEvent(self._createPromise, 'venmo.tokenize.manual-return.status-change.' + newStatus.toLowerCase());\n\n switch (newStatus) {\n case 'EXPIRED':\n case 'FAILED':\n case 'CANCELED':\n return Promise.reject(new BraintreeError(errors['VENMO_MOBILE_POLLING_TOKENIZATION_' + newStatus]));\n\n case 'APPROVED':\n return Promise.resolve(node);\n\n case 'CREATED':\n case 'SCANNED':\n default: // any other statuses are irrelevant to the polling\n // and can just be ignored\n\n }\n }\n\n return new Promise(function (resolve, reject) {\n setTimeout(function () {\n self._pollForStatusChange().then(resolve).catch(reject);\n }, self._mobilePollingInterval);\n });\n });\n };\n\n Venmo.prototype._tokenizeForMobileWithManualReturn = function () {\n var self = this;\n analytics.sendEvent(this._createPromise, 'venmo.tokenize.manual-return.start');\n this._mobilePollingContextExpiresIn = Date.now() + this._mobilePollingExpiresThreshold;\n this._tokenizePromise = new ExtendedPromise();\n\n this._pollForStatusChange().then(function (payload) {\n analytics.sendEvent(self._createPromise, 'venmo.tokenize.manual-return.success');\n\n self._tokenizePromise.resolve({\n paymentMethodNonce: payload.paymentMethodId,\n username: '@' + (payload.userName || '').replace('@', '')\n });\n }).catch(function (err) {\n analytics.sendEvent(self._createPromise, 'venmo.tokenize.manual-return.failure');\n\n self._tokenizePromise.reject(err);\n });\n\n return this.getUrl().then(function (url) {\n self.appSwitch(url);\n return self._tokenizePromise;\n });\n };\n\n Venmo.prototype._shouldUseRedirectStrategy = function () {\n if (!browserDetection.isIos()) {\n return false;\n }\n\n return this._useRedirectForIOS;\n };\n\n Venmo.prototype._tokenizeForMobileWithHashChangeListeners = function (options) {\n var self = this;\n var resultProcessingInProgress, visibilityChangeListenerTimeout;\n\n if (this.hasTokenizationResult()) {\n return this.processResultsFromHash();\n }\n\n analytics.sendEvent(this._createPromise, 'venmo.tokenize.mobile.start');\n this._tokenizePromise = new ExtendedPromise();\n this._previousHash = window.location.hash;\n\n function completeFlow(hash) {\n var error;\n self.processResultsFromHash(hash).catch(function (err) {\n error = err;\n }).then(function (res) {\n if (!self._ignoreHistoryChanges && window.location.hash !== self._previousHash) {\n window.location.hash = self._previousHash;\n }\n\n self._removeVisibilityEventListener();\n\n if (error) {\n self._tokenizePromise.reject(error);\n } else {\n self._tokenizePromise.resolve(res);\n }\n\n delete self._tokenizePromise;\n });\n } // The Venmo SDK app switches back with the results of the\n // tokenization encoded in the hash\n\n\n this._onHashChangeListener = function (e) {\n var hash = e.newURL.split('#')[1];\n\n if (!self._hasTokenizationResult(hash)) {\n return;\n }\n\n resultProcessingInProgress = true;\n clearTimeout(visibilityChangeListenerTimeout);\n completeFlow(hash);\n };\n\n window.addEventListener('hashchange', this._onHashChangeListener, false); // Subscribe to document visibility change events to detect when app switch\n // has returned. Acts as a fallback for the hashchange listener and catches\n // the cancel case via manual app switch back\n\n this._visibilityChangeListener = function () {\n var delay = options.processResultsDelay || constants.DEFAULT_PROCESS_RESULTS_DELAY;\n\n if (!window.document.hidden) {\n if (!resultProcessingInProgress) {\n visibilityChangeListenerTimeout = setTimeout(completeFlow, delay);\n }\n }\n };\n\n return this.getUrl().then(function (url) {\n self.appSwitch(url); // Add a brief delay to ignore visibility change events that occur right before app switch\n\n setTimeout(function () {\n window.document.addEventListener(documentVisibilityChangeEventName(), self._visibilityChangeListener);\n }, constants.DOCUMENT_VISIBILITY_CHANGE_EVENT_DELAY);\n return self._tokenizePromise;\n });\n };\n\n Venmo.prototype._tokenizeForDesktop = function () {\n var self = this;\n analytics.sendEvent(this._createPromise, 'venmo.tokenize.desktop.start');\n this._tokenizePromise = new ExtendedPromise();\n\n this._createPromise.then(function () {\n return self._venmoDesktopInstance.launchDesktopFlow();\n }).then(function (payload) {\n self._venmoDesktopInstance.hideDesktopFlow();\n\n analytics.sendEvent(self._createPromise, 'venmo.tokenize.desktop.success');\n\n self._tokenizePromise.resolve(payload);\n }).catch(function (err) {\n analytics.sendEvent(self._createPromise, 'venmo.tokenize.desktop.failure');\n\n if (self._venmoDesktopInstance) {\n self._venmoDesktopInstance.hideDesktopFlow();\n }\n\n if (err && err.reason === 'CUSTOMER_CANCELED') {\n self._tokenizePromise.reject(new BraintreeError(errors.VENMO_DESKTOP_CANCELED));\n\n return;\n }\n\n self._tokenizePromise.reject(new BraintreeError({\n type: errors.VENMO_DESKTOP_UNKNOWN_ERROR.type,\n code: errors.VENMO_DESKTOP_UNKNOWN_ERROR.code,\n message: errors.VENMO_DESKTOP_UNKNOWN_ERROR.message,\n details: {\n originalError: err\n }\n }));\n });\n\n return this._tokenizePromise;\n }; // TODO remove this once initial testing is done\n\n\n Venmo.prototype._updateVenmoDesktopPaymentContext = function (status, options) {\n return this._venmoDesktopInstance.updateVenmoDesktopPaymentContext(status, options);\n };\n\n Venmo.prototype._cancelMobilePaymentContext = function () {\n var self = this;\n return this._createPromise.then(function (client) {\n var query;\n\n if (self._venmoPaymentContextId) {\n query = self._shouldUseLegacyFlow ? graphqlQueries.LEGACY_UPDATE_PAYMENT_CONTEXT_QUERY : graphqlQueries.UPDATE_PAYMENT_CONTEXT_QUERY;\n return client.request({\n api: 'graphQLApi',\n data: {\n query: query,\n variables: {\n input: {\n id: self._venmoPaymentContextId,\n status: 'CANCELED'\n }\n }\n }\n });\n }\n\n return Promise.resolve();\n });\n };\n\n Venmo.prototype._cancelVenmoDesktopContext = function () {\n var self = this;\n return this._createPromise.then(function () {\n if (self._venmoDesktopInstance) {\n self._venmoDesktopInstance.updateVenmoDesktopPaymentContext('CANCELED');\n }\n\n return Promise.resolve();\n });\n };\n /**\n * Cleanly tear down anything set up by {@link module:braintree-web/venmo.create|create}.\n * @public\n * @param {callback} [callback] Called once teardown is complete. No data is returned if teardown completes successfully.\n * @example\n * venmoInstance.teardown();\n * @example tokenizePayload is a {@link VisaCheckout~tokenizePayload|tokenizePayload}. If no callback is provided, `tokenize` returns a promise that resolves with the {@link VisaCheckout~tokenizePayload|tokenizePayload}.\n * @returns {(Promise|void)} Returns a promise if no callback is provided.\n */\n\n\n VisaCheckout.prototype.tokenize = function (payment) {\n var self = this;\n\n if (!payment.callid || !payment.encKey || !payment.encPaymentData) {\n return Promise.reject(new BraintreeError(errors.VISA_CHECKOUT_PAYMENT_REQUIRED));\n }\n\n return this._client.request({\n method: 'post',\n endpoint: 'payment_methods/visa_checkout_cards',\n data: {\n _meta: {\n source: 'visa-checkout'\n },\n visaCheckoutCard: {\n callId: payment.callid,\n encryptedPaymentData: payment.encPaymentData,\n encryptedKey: payment.encKey\n }\n }\n }).then(function (response) {\n analytics.sendEvent(self._client, 'visacheckout.tokenize.succeeded');\n return response.visaCheckoutCards[0];\n }).catch(function (err) {\n analytics.sendEvent(self._client, 'visacheckout.tokenize.failed');\n return Promise.reject(new BraintreeError({\n type: errors.VISA_CHECKOUT_TOKENIZATION.type,\n code: errors.VISA_CHECKOUT_TOKENIZATION.code,\n message: errors.VISA_CHECKOUT_TOKENIZATION.message,\n details: {\n originalError: err\n }\n }));\n });\n };\n /**\n * Cleanly tear down anything set up by {@link module:braintree-web/visa-checkout.create|create}.\n * @public\n * @param {callback} [callback] Called once teardown is complete. No data is returned if teardown completes successfully.\n * @example\n * visaCheckoutInstance.teardown();\n * @example