CODE EXAMPLE FOR JAVASCRIPT

Square Every Digit javascript

function squareDigits(num){
  let string = num.toString();  // turn number to a string
  let results = [];             // create an array to save the new values of the string
  for (let i = 0; i < string.length; i++){  // iterate through the string
      results[i] = string[i] * string[i];   // save the square of the number to the array 
  }
  return Number(results.join(''));    // turn the array into a string and then into a number
}