automorphic

automorphic

function automorphic(number) {
  const numberArr = Array.from(number.toString()).map(Number);
  const square = Math.pow(number, 2);
  const squareArr = Array.from(square.toString()).map(Number);
  const startElement = squareArr.length - numberArr.length;
  let flag = false;

  for (let i = 0, j = startElement; i < numberArr.length, j < squareArr.length; i++, j++) {
    flag = false;
    if (numberArr[i] == squareArr[j]) {
      flag = true;
    } else {
      console.log(`${number} is not automorphic`);
      break;
    }
  }

  if (flag) {
    console.log(`${number} is automorphic`);
  }
}

automorphic(76);