feat: resolve mostRepeatedChar

09-mostRepeatedChar/index.js

@@ -1,4 +1,13 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    const arr = text.split("");
+
+    let timesRepeat = {};
+    arr.forEach((count) =>  {
+        timesRepeat[count] = (timesRepeat[count] || 0) + 1;
+    })
+
+    const maxVal = Math.max(...Object.values(timesRepeat));
+    const num = Object.keys(timesRepeat).find((key) => timesRepeat[key] === maxVal);
+    return num;
 }