1  var baseAssignValue = require('./_baseAssignValue'),
 2      baseForOwn = require('./_baseForOwn'),
 3      baseIteratee = require('./_baseIteratee');
 4  
 5  /**
 6   * The opposite of `_.mapValues`; this method creates an object with the
 7   * same values as `object` and keys generated by running each own enumerable
 8   * string keyed property of `object` thru `iteratee`. The iteratee is invoked
 9   * with three arguments: (value, key, object).
10   *
11   * @static
12   * @memberOf _
13   * @since 3.8.0
14   * @category Object
15   * @param {Object} object The object to iterate over.
16   * @param {Function} [iteratee=_.identity] The function invoked per iteration.
17   * @returns {Object} Returns the new mapped object.
18   * @see _.mapValues
19   * @example
20   *
21   * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
22   *   return key + value;
23   * });
24   * // => { 'a1': 1, 'b2': 2 }
25   */
26  function mapKeys(object, iteratee) {
27    var result = {};
28    iteratee = baseIteratee(iteratee, 3);
29  
30    baseForOwn(object, function(value, key, object) {
31      baseAssignValue(result, iteratee(value, key, object), value);
32    });
33    return result;
34  }
35  
36  module.exports = mapKeys;