1  var baseDifference = require('./_baseDifference'),
 2      baseFlatten = require('./_baseFlatten'),
 3      baseRest = require('./_baseRest'),
 4      isArrayLikeObject = require('./isArrayLikeObject'),
 5      last = require('./last');
 6  
 7  /**
 8   * This method is like `_.difference` except that it accepts `comparator`
 9   * which is invoked to compare elements of `array` to `values`. The order and
10   * references of result values are determined by the first array. The comparator
11   * is invoked with two arguments: (arrVal, othVal).
12   *
13   * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
14   *
15   * @static
16   * @memberOf _
17   * @since 4.0.0
18   * @category Array
19   * @param {Array} array The array to inspect.
20   * @param {...Array} [values] The values to exclude.
21   * @param {Function} [comparator] The comparator invoked per element.
22   * @returns {Array} Returns the new array of filtered values.
23   * @example
24   *
25   * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
26   *
27   * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
28   * // => [{ 'x': 2, 'y': 1 }]
29   */
30  var differenceWith = baseRest(function(array, values) {
31    var comparator = last(values);
32    if (isArrayLikeObject(comparator)) {
33      comparator = undefined;
34    }
35    return isArrayLikeObject(array)
36      ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
37      : [];
38  });
39  
40  module.exports = differenceWith;