Can be used as foundation for algo questions which ask to split number into digits and manipulate it in some way afterward

algo-number-to-digits-conversions.js

// Can be used as foundation for algo questions which ask to split number into digits and manipulate it in some way afterward
function numberToSumOfDigits(num) {
  let totalSum = 0;
  while(num > 0){
    const digit = num %10
    num = Math.floor(num/10);
    totalSum += digit
  }

  return totalSum
}

function reverseNumber (num) {
  const isPositive = (num > 0);
  num = Math.abs(num);
  let result = 0;
  while(num > 0){
    const mod = Math.floor(num %10);
    num = Math.floor(num/10);
    result = result*10+mod
  }

  return isPositive? result: result - (result*2)
};