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authorRebecca Turner <me@re-becca.org>2018-04-20 18:26:37 -0700
committerRebecca Turner <me@re-becca.org>2018-05-24 23:24:45 -0700
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deps: upgrade npm to 6.1.0
PR-URL: https://github.com/nodejs/node/pull/20190 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Michaƫl Zasso <targos@protonmail.com>
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+var arrayMap = require('../internal/arrayMap'),
+ baseCallback = require('../internal/baseCallback'),
+ baseMap = require('../internal/baseMap'),
+ isArray = require('../lang/isArray');
+
+/**
+ * Creates an array of values by running each element in `collection` through
+ * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
+ * arguments: (value, index|key, collection).
+ *
+ * If a property name is provided for `iteratee` the created `_.property`
+ * style callback returns the property value of the given element.
+ *
+ * If a value is also provided for `thisArg` the created `_.matchesProperty`
+ * style callback returns `true` for elements that have a matching property
+ * value, else `false`.
+ *
+ * If an object is provided for `iteratee` the created `_.matches` style
+ * callback returns `true` for elements that have the properties of the given
+ * object, else `false`.
+ *
+ * Many lodash methods are guarded to work as iteratees for methods like
+ * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
+ *
+ * The guarded methods are:
+ * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
+ * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
+ * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
+ * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
+ * `sum`, `uniq`, and `words`
+ *
+ * @static
+ * @memberOf _
+ * @alias collect
+ * @category Collection
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|Object|string} [iteratee=_.identity] The function invoked
+ * per iteration.
+ * @param {*} [thisArg] The `this` binding of `iteratee`.
+ * @returns {Array} Returns the new mapped array.
+ * @example
+ *
+ * function timesThree(n) {
+ * return n * 3;
+ * }
+ *
+ * _.map([1, 2], timesThree);
+ * // => [3, 6]
+ *
+ * _.map({ 'a': 1, 'b': 2 }, timesThree);
+ * // => [3, 6] (iteration order is not guaranteed)
+ *
+ * var users = [
+ * { 'user': 'barney' },
+ * { 'user': 'fred' }
+ * ];
+ *
+ * // using the `_.property` callback shorthand
+ * _.map(users, 'user');
+ * // => ['barney', 'fred']
+ */
+function map(collection, iteratee, thisArg) {
+ var func = isArray(collection) ? arrayMap : baseMap;
+ iteratee = baseCallback(iteratee, thisArg, 3);
+ return func(collection, iteratee);
+}
+
+module.exports = map;