Answers for "how to get two different random numbers that are different from each other at the same frame in unity"

get all the child of the same class javascript

var doc = document.getElementById("test");
var notes = null;
for (var i = 0; i < doc.childNodes.length; i++) {
    if (doc.childNodes[i].className == "4") {
      notes = doc.childNodes[i];
      break;
    }        
}

how to add up all the numbers in between 0 and that number

function addUp(num) {
  if (num === 1) return 1;
  return num + addUp(num - 1);
}