Function sumDigitsSquared

ch7-happycoin-as/happycoin.ts:10–18

(num: u64)

}

function sumDigitsSquared(num: u64): u64 {
  let total: u64 = 0;
  while (num > 0) {
    const numModBase = num % 10;
    total += numModBase ** 2;
    num = num / 10;
  }
  return total;
}

function isHappy(num: u64): boolean {
  while (num != 1 && num != 4) {