1  var baseEach = require('./_baseEach'),
 2      isArrayLike = require('./isArrayLike');
 3  
 4  /**
 5   * The base implementation of `_.map` without support for iteratee shorthands.
 6   *
 7   * @private
 8   * @param {Array|Object} collection The collection to iterate over.
 9   * @param {Function} iteratee The function invoked per iteration.
10   * @returns {Array} Returns the new mapped array.
11   */
12  function baseMap(collection, iteratee) {
13    var index = -1,
14        result = isArrayLike(collection) ? Array(collection.length) : [];
15  
16    baseEach(collection, function(value, key, collection) {
17      result[++index] = iteratee(value, key, collection);
18    });
19    return result;
20  }
21  
22  module.exports = baseMap;