feat(09-mostRepeatedChar): Cria a função

09-mostRepeatedChar/index.js

@@ -1,4 +1,19 @@
 export function mostUsedChar(text) {
-    // implementar logica aqui
+    let arrChar;
-    return ""
+    arrChar = text.split('');
-}
+    let countCharMax = 1;
+    let countChar = 0;
+    let char;
+    for (let i=0; i<arrChar.length; i++)
+    {
+        for (let j=i; j<arrChar.length; j++) {
+            if (arrChar[i] == arrChar[j])
+            countChar++;
+            if (countCharMax<countChar) {
+                countCharMax=countChar; 
+                char = arrChar[i];
+            }
+        }
+        countChar = 0;
+    } return char;
+}