export function mostFrequentChar(text: string): string {
  const myMap = new Map();

  for(const c of text){
    myMap.set(c, (myMap.get(c) ?? 0) +1)
  }

  return Array.from(myMap.keys()).sort(
    (a,b)=>myMap.get(b)-myMap.get(a)
  )[0]

  
}