solve reverse string and vowels counter

Beginner/maxRecurringChar/index-START.js

@@ -3,10 +3,9 @@ Given a string of text, find and return the most recurring character.
 e.g maxRecurringChar('aabacada') // will return 'a'
 */
 
-
-
 function maxRecurringChar(text) {
     // Code goes here
+
 }
 
 

Beginner/reverseString/index-START.js

@@ -6,7 +6,7 @@ E.g reverseString('algorithms') // should return 'smhtirogla'
 
 
 function reverseString(text) {
-    // Code goes here
+    return [...text].reduce((acc, char) => char + acc, '')
 }
 
 

Beginner/vowelsCounter/index-START.js

@@ -3,9 +3,27 @@ Given a string of text, return the number of vowels found within the text
 e.g vowelsCounter('anehizxcv') // will return 3
 */
 
+const vowels = ['a', 'e', 'i', 'o', 'u'];
 
 function vowelsCounter(text) {
-    // Code goes here
+/* ITERATIVE SOLUTION */
+    /*
+    let vowelNum = 0;
+    for(let letter of text.toLowerCase()){
+        if (vowels.includes(letter)){
+            vowelNum++;
+        }
+    }
+    return vowelNum
+    */
+    /* REGEX SOLUTION */
+    let matchingInstances = text.match(/[aeiou]/gi);
+    if(matchingInstances){
+        return matchingInstances.length
+    }else{
+        return 0;
+    }
+
 }