Preview:
//Perfect Square without finding square root

function perfectSquare(number) {
  for (let i = 0; i * i <= number; i++) {
    if (number % i === 0 && number / i === i) return true;
  }
  return false;
}

let num = 12;
console.log(perfectSquare(num));
downloadDownload PNG downloadDownload JPEG downloadDownload SVG

Tip: You can change the style, width & colours of the snippet with the inspect tool before clicking Download!

Click to optimize width for Twitter