1var arrayMap = require('./_arrayMap'),
2    baseIteratee = require('./_baseIteratee'),
3    baseMap = require('./_baseMap'),
4    isArray = require('./isArray');
5
6/**
7 * Creates an array of values by running each element in `collection` thru
8 * `iteratee`. The iteratee is invoked with three arguments:
9 * (value, index|key, collection).
10 *
11 * Many lodash methods are guarded to work as iteratees for methods like
12 * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
13 *
14 * The guarded methods are:
15 * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
16 * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
17 * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
18 * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
19 *
20 * @static
21 * @memberOf _
22 * @since 0.1.0
23 * @category Collection
24 * @param {Array|Object} collection The collection to iterate over.
25 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
26 * @returns {Array} Returns the new mapped array.
27 * @example
28 *
29 * function square(n) {
30 *   return n * n;
31 * }
32 *
33 * _.map([4, 8], square);
34 * // => [16, 64]
35 *
36 * _.map({ 'a': 4, 'b': 8 }, square);
37 * // => [16, 64] (iteration order is not guaranteed)
38 *
39 * var users = [
40 *   { 'user': 'barney' },
41 *   { 'user': 'fred' }
42 * ];
43 *
44 * // The `_.property` iteratee shorthand.
45 * _.map(users, 'user');
46 * // => ['barney', 'fred']
47 */
48function map(collection, iteratee) {
49  var func = isArray(collection) ? arrayMap : baseMap;
50  return func(collection, baseIteratee(iteratee, 3));
51}
52
53module.exports = map;
54