Preventing a generator from repeating options until all options are exhausted?

Question

I feel I should preface this by saying I am just now really learning how to incorporate anything into JavaScript, so please explain things and answers at a rudimentary level.

I am trying to figure out how to make this script NOT REPEAT an option until ALL options have been exhausted at least once. This is a common problem with Math.random from what I see, but I have no idea how to incorporate a fix to make it not repeat.

var roulette = document.getElementById("rouletteButton");
var stratnames_t = {
  '0': "Strategy 1 Name Here",
  '1': "Strategy 2 Name Here",
};
var objectives_t = {
  '0': "Objective 1 Description Here",
  '1': "Objective 2 Description Here",
};

function randomRoulette() {

  document.getElementById("roulette").style.display = "";

  var rand = Math.floor(2 * Math.random());
  document.getElementsByTagName("objective")[0].innerHTML = objectives_t[rand];
  document.getElementsByTagName("stratname")[0].innerHTML = stratnames_t[rand];

};

function main() {
  roulette.addEventListener("click", function() {
    randomRoulette();
  });
}

main();