feat(mostrepeatedchar):aplicando a função ao testee 9

09-mostRepeatedChar/index.js

@@ -1,4 +1,12 @@
 export function mostUsedChar(text) {
     // implementar logica aqui
-    return ""
+    const arr = text.split("");
+    let counts = {};
+        arr.forEach((count) => {
+        counts[count] = (counts[count] || 0) + 1;
+        });
+
+    const maxVal = Math.max(...Object.values(counts));
+    const num = Object.keys(counts).find((key) => counts[key] === maxVal);
+            return num;
 }