1  /**
 2   * A specialized version of `_.map` for arrays without support for iteratee
 3   * shorthands.
 4   *
 5   * @private
 6   * @param {Array} [array] The array to iterate over.
 7   * @param {Function} iteratee The function invoked per iteration.
 8   * @returns {Array} Returns the new mapped array.
 9   */
10  function arrayMap(array, iteratee) {
11    var index = -1,
12        length = array == null ? 0 : array.length,
13        result = Array(length);
14  
15    while (++index < length) {
16      result[index] = iteratee(array[index], index, array);
17    }
18    return result;
19  }
20  
21  module.exports = arrayMap;