--- /dev/null
+var baseDifference = require('./_baseDifference'),
+ baseFlatten = require('./_baseFlatten'),
+ isArrayLikeObject = require('./isArrayLikeObject'),
+ last = require('./last'),
+ rest = require('./rest');
+
+/**
+ * This method is like `_.difference` except that it accepts `comparator`
+ * which is invoked to compare elements of `array` to `values`. The comparator
+ * is invoked with two arguments: (arrVal, othVal).
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {...Array} [values] The values to exclude.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of filtered values.
+ * @example
+ *
+ * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
+ *
+ * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
+ * // => [{ 'x': 2, 'y': 1 }]
+ */
+var differenceWith = rest(function(array, values) {
+ var comparator = last(values);
+ if (isArrayLikeObject(comparator)) {
+ comparator = undefined;
+ }
+ return isArrayLikeObject(array)
+ ? baseDifference(array, baseFlatten(values, false, true), undefined, comparator)
+ : [];
+});
+
+module.exports = differenceWith;