export function mostUsedChar(text) {
  // implementar logica aqui
  let arr = text.toLowerCase().split("").sort();
  let mostRepeated = null;
  let moreOccurrences = -1;

  let count = 1;
  for (let i = 1; i <= arr.length; i++) {
    if (i < arr.length && arr[i] === arr[i - count]) {
      count++;
    } else if (count > moreOccurrences) {
      mostRepeated = arr[i - 1];
      moreOccurrences = count;
    }
  }
  return `${mostRepeated}`;
}