feat(mostUsedChar): Implementacao da funcao mostUsedChar()

09-mostRepeatedChar/index.js

@@ -1,4 +1,24 @@
 export function mostUsedChar(text) {
-    // implementar logica aqui
-    return ""
+    text.toLowerCase();
+            
+    let sorted = text.split('').sort().join('');
+
+    let cont = 1;
+    let repeatedTimes = 0;
+    let mostUsed = "";
+
+    for(let i = 0; i < sorted.length; i++){
+        if(sorted[i] === sorted[i + 1]){
+            cont++;
+        }
+        else{
+            if(cont > repeatedTimes){
+                repeatedTimes = cont;
+                mostUsed = sorted[i];
+            }
+            cont = 1;
+        }
+    }
+
+    return mostUsed;
 }