Get random int excluding existing numbers

getRandomIntExcludingExistingNumbers.js

    /**
    * Returns a random integer between min (inclusive) and max (inclusive).
    * Pass all values as an array, as 3rd argument which values shouldn't be generated by the function.
    * The value is no lower than min (or the next integer greater than min
    * if min isn't an integer) and no greater than max (or the next integer
    * lower than max if max isn't an integer).
    * Using Math.round() will give you a non-uniform distribution!
    */
    
function getRandomInt(min, max) {
   const minimum = Math.ceil(min);
   const maximum = Math.floor(max);

   return Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
}

// How to use this code? 
// getRandomIntExcludingExistingNumbers(1, 5, [1])


function getRandomIntExcludingExistingNumbers(min, max, excludeArrayNumbers) {
  let randomNumber;

  if(!Array.isArray(excludeArrayNumbers)) {
    randomNumber = getRandomInt(min, max);
    return randomNumber;
  }

  do {
    randomNumber = getRandomInt(min, max);
  } while ((excludeArrayNumbers || []).includes(randomNumber));

  return randomNumber;
}