1
var judgeSquareSum = function (c) {
2
  if (c === 0) {
3
    return true;
4
  }
5
  for (let a = 0; a * a < c; a++) {
6
    let b = Math.sqrt(parseFloat(c - a * a));
7
    if (b - Math.round(b) === 0) {
8
      return true;
9
    }
10
  }
11
  return false;
12
};