Function sumDigitsSquared

ch3-happycoin/happycoin-threads.js:14–22

(num)

}

function sumDigitsSquared(num) {
  let total = 0n;
  while (num > 0) {
    const numModBase = num % 10n;
    total += numModBase ** 2n;
    num = num / 10n;
  }
  return total;
}

function isHappy(num) {
  while (num != 1n && num != 4n) {