Bump to v4.0.0.

uniqWith.js

@@ -0,0 +1,31 @@
+define(['./internal/baseUniq'], function(baseUniq) {
+
+  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+  var undefined;
+
+  /**
+   * This method is like `_.uniq` except that it accepts `comparator` which
+   * is invoked to compare elements of `array`. The comparator is invoked with
+   * two arguments: (arrVal, othVal).
+   *
+   * @static
+   * @memberOf _
+   * @category Array
+   * @param {Array} array The array to inspect.
+   * @param {Function} [comparator] The comparator invoked per element.
+   * @returns {Array} Returns the new duplicate free array.
+   * @example
+   *
+   * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 },  { 'x': 1, 'y': 2 }];
+   *
+   * _.uniqWith(objects, _.isEqual);
+   * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
+   */
+  function uniqWith(array, comparator) {
+    return (array && array.length)
+      ? baseUniq(array, undefined, comparator)
+      : [];
+  }
+
+  return uniqWith;
+});