From b7685057d27fdebec0fd7a70bc5886895f6bb6d6 Mon Sep 17 00:00:00 2001
From: zongyanqi <zongyanqi@foxmail.com>
Date: Mon, 20 Mar 2017 08:50:00 +0800
Subject: [PATCH] add Medium_151_Reverse_Words_in_a_String

---
 Medium_151_Reverse_Words_in_a_String.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Medium_151_Reverse_Words_in_a_String.js

diff --git a/Medium_151_Reverse_Words_in_a_String.js b/Medium_151_Reverse_Words_in_a_String.js
new file mode 100644
index 0000000..1f075af
--- /dev/null
+++ b/Medium_151_Reverse_Words_in_a_String.js
@@ -0,0 +1,18 @@
+/**
+ * Given an input string, reverse the string word by word.
+
+ For example,
+ Given s = "the sky is blue",
+ return "blue is sky the".
+ */
+
+/**
+ * @param {string} str
+ * @returns {string}
+ */
+var reverseWords = function (str) {
+    return str.split(' ')
+              .filter(w => w)
+              .reverse()
+              .join(' ');
+};
\ No newline at end of file