Create 189-rotate-array.js

Author: everthis

189-rotate-array.js

@@ -0,0 +1,8 @@
+/**
+ * @param {number[]} nums
+ * @param {number} k
+ * @return {void} Do not return anything, modify nums in-place instead.
+ */
+const rotate = function(nums, k) {
+  nums.unshift(...nums.splice(nums.length - k));
+};