Simple random array
HTML
<div id="joke">JOKE</div>
<button onclick="nextJoke()">Next joke</button>
JavaScript
$(function () {
var jokes = ["<i class='fas fa-dice-two'></i>", "<i class='fas fa-dice-three'></i>", "<i class='fas fa-dice-four'></i>"];
$( "button" ).click(function() {
var jokeId = Math.floor((Math.random()*10));
var joke = $('#joke');
joke.html(jokes[jokeId]);
});
});