add Medium_151_Reverse_Words_in_a_String

w3csky · Mar 20, 2017 · b768505 · b768505
1 parent d756fe9
commit b768505
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/Medium_151_Reverse_Words_in_a_String.js b/Medium_151_Reverse_Words_in_a_String.js
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+/**
+ * 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(' ');
+};