JavaScript - How to Wait / SetTimeOut / Sleep / Delay

Question

This again is my Rock Paper Scissors game.

At present state the user can\'t see what\'s happening because after being prompted for input(Rock, Paper or Scissors) they ar

Answer 1

You cannot return a value for a parent function on a setTimeout, setInterval or another child function because have different scopes.

You can use promises instead: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise

Bad:

function x () {
  setTimeout(function () {
     return "anything";
  }, 5000);
}

Using promises:

function x () {
  return new Promise(function (resolve, reject) {
    setTimeout(function () {
      resolve("anything");
    }, 5000);
  });
}

Then you can call function like:

x()
.then(
  function (result) {
    alert(result); // Do anything.
  }
);

PD: I have bad English, I'm sorry!.