Bump to v4.0.0.

uniqWith.js

@@ -0,0 +1,27 @@
+import baseUniq from './internal/baseUniq';
+
+/**
+ * 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)
+    : [];
+}
+
+export default uniqWith;