function fillnumbers(startNum, endNum) {

ript
function fillNumbers(startNum, endNum) {
  var result = [];
  for (var i = startNum; i <= endNum; i++) {
    result.push(i);
  }
  return result;
}

function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min