Merge pull request #244 from akhand123/master

added solution for leetcode# 344 in javascript

Author: larissalages

leetcode/Javascript/.DS_Store

@@ -0,0 +1,14 @@
+/**
+ * @param {character[]} s
+ * @return {void} Do not return anything, modify s in-place instead.
+ */
+
+var reverseString = function(s) {
+  const helper = function(left, right) {
+    if (left < right) {
+      [s[left], s[right]] = [s[right], s[left]]
+      helper(left + 1, right - 1)
+    }
+  }
+  helper(0, s.length - 1)
+};