1  var arrayFilter = require('./_arrayFilter'),
 2      baseIteratee = require('./_baseIteratee'),
 3      baseRest = require('./_baseRest'),
 4      baseXor = require('./_baseXor'),
 5      isArrayLikeObject = require('./isArrayLikeObject'),
 6      last = require('./last');
 7  
 8  /**
 9   * This method is like `_.xor` except that it accepts `iteratee` which is
10   * invoked for each element of each `arrays` to generate the criterion by
11   * which by which they're compared. The order of result values is determined
12   * by the order they occur in the arrays. The iteratee is invoked with one
13   * argument: (value).
14   *
15   * @static
16   * @memberOf _
17   * @since 4.0.0
18   * @category Array
19   * @param {...Array} [arrays] The arrays to inspect.
20   * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
21   * @returns {Array} Returns the new array of filtered values.
22   * @example
23   *
24   * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
25   * // => [1.2, 3.4]
26   *
27   * // The `_.property` iteratee shorthand.
28   * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
29   * // => [{ 'x': 2 }]
30   */
31  var xorBy = baseRest(function(arrays) {
32    var iteratee = last(arrays);
33    if (isArrayLikeObject(iteratee)) {
34      iteratee = undefined;
35    }
36    return baseXor(arrayFilter(arrays, isArrayLikeObject), baseIteratee(iteratee, 2));
37  });
38  
39  module.exports = xorBy;