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+# 345. Reverse Vowels of a String
+
+- Difficulty: Easy.
+- Related Topics: Two Pointers, String.
+- Similar Questions: Reverse String, Remove Vowels from a String, Faulty Keyboard and Sort Vowels in a String.
+
+## Problem
+
+Given a string s, reverse only all the vowels in the string and return it.
+
+The vowels are `a`, `e`, `i`, `o`, and `u`, and they can appear in both lower and upper cases, more than once.
+
+ 
+
+Example 1:
+
+Input: s = `hello`
+Output: `holle`
+
+Example 2:
+
+Input: s = `leetcode`
+Output: `leotcede`
+
+
+## Solution
+```bash
+/**
+ * @param {string} s
+ * @return {string}
+ */
+var reverseVowels = function(s) {
+    let start = 0, end = s.length - 1;
+    let vowel = "aeiouAEIOU";
+    s = s.split('')
+
+    while(start < end)
+    {
+        while(start < end && !vowel.includes(s[start]))
+        {
+            start ++;
+        }
+
+        while(start < end && !vowel.includes(s[end]))
+        {
+            end--;
+        }
+        
+            let temp = s[start];
+            s[start] = s[end];
+            s[end] = temp;
+
+        start++;
+        end--;
+    }
+
+    return s.join('');
+
+};