Time Convert Code Challenge

/**     
This challenge requires you to convert an integer, which represents the number of minutes, for example 63 means 214 minutes, and convert this integer into hours and minutes. So if the input was 63, then your program should output the string '1:3' because 63 minutes converts to 1 hour and 3 minutes.

We will use the modulo operation to solve this challenge. The modulo operation simply returns the remainder after a division, so for example, the remainder of 5 / 2 is 1, so the modulo of 5 / 2 is 1.
 */

function TimeConvert(num) {
  // to get the hours, we divide num by 60 and round it down
  // e.g. 61 / 60 = 1 hour
  // e.g. 43 / 60 = 0 hours
  var hours = Math.floor(num / 60);

  // get the remainer from the the floor math and module by 60;

  var minutes = num % 60;

  // Build the new format
  return `${hours}:${minutes}`;
}

/* Simple return */
function TimeConvert(num) {
  // code goes here
  return Math.floor(num / 60) + ":" + num % 60;
}

/* Declarative */
function TimeConvert(num) {
  let hours = 0;
  let minutes = 0;
  minutes = num % 60;
  hours = (num - minutes) / 60;
  return hours + ":" + minutes;
}

/* Appending +1 hour (60min) in each loop iteration */
function TimeConvert(num) {
  var hours = 0;
  var mins = num % 60;
  // code goes here
  for (var i = 60; i <= num; i += 60) {
    hours++;
  }
  return hours + ":" + mins;
}