sqrroot.js

function sqrt(number) {
  if (number < 0) {
    throw new Error("Square root of a negative number is undefined");
  }

  let guess = number / 2;
  const precision = 0.0001; // Adjust the precision as needed

  while (Math.abs(guess * guess - number) > precision) {
    guess = (guess + number / guess) / 2;
  }

  return guess;
}

const number = 16;
const result = sqrt(number);
console.log(result);