How to count all uppercase characters in a string?

Question

I stuck on a function that supposed to count upper letters in a string. But instead the counter results in 0 and I've no idea where I made a mistake.

const bigLettersCount = (str) => {
  let result = 0;
  for (let i = 0; i < str.length; i += 1) {
    if (str[i].toUpperCase() === str[i]) {
    result += i;
    }
    return result;
   }
  }
  bigLettersCount('HeLLo')

Answer 1

I have updated your code like below. It will work.

const bigLettersCount = (str) => {
let result = 0;
for (let i = 0; i < str.length; i += 1) {
  if (str[i].toUpperCase() === str[i]) {
    result++;
  }
}
return result;
}