1
var percentageLetter = function (s, letter) {
2
  let count = 0;
3
  for (let i of s) {
4
    // count how many letters are in s
5
    if (i == letter) count++;
6
  }
7
  return Math.floor(((count * 1.0) / (s.length * 1.0)) * 100); // get percentage
8
};