Bump to v4.0.0.

sortedUniqBy.js

@@ -0,0 +1,25 @@
+import baseIteratee from './internal/baseIteratee';
+import baseSortedUniqBy from './internal/baseSortedUniqBy';
+
+/**
+ * This method is like `_.uniqBy` except that it's designed and optimized
+ * for sorted arrays.
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @returns {Array} Returns the new duplicate free array.
+ * @example
+ *
+ * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
+ * // => [1.1, 2.2]
+ */
+function sortedUniqBy(array, iteratee) {
+  return (array && array.length)
+    ? baseSortedUniqBy(array, baseIteratee(iteratee))
+    : [];
+}
+
+export default sortedUniqBy;