Wikia trivia on anything! Just go to your favourite wiki and run this JavaScript code to get free trivia!

random-wikia-trivia.js

var what = "/Special:Random";

$.get(what).done(function(res) {
  try {
    res = (new DOMParser()).parseFromString(res, "text/html");

    window.res = res;

    what = res.querySelector("#WikiaPageHeader .header-title").textContent.trim();

    var trivHeader = res.querySelector("*[id*=rivia]");
    var article = trivHeader.parentNode.parentNode;
    var index = Array.from(article.childNodes).indexOf(trivHeader.parentNode);
    var trivUl = article.childNodes[index + 2];
    var arr = ["-- Trivia on " + what + ": --"];

    for (var i of trivUl.children) {
      arr.push(i.innerText.trim());
    }

    alert(arr.join("\n\n"));
  } catch(e) {
    alert("Oops! I couldn't get you any trivia on the page " + what + ". Sorry!\n\n" + e);
  }
}).error(function(e) {
  alert("Oops! I got a network error.");
});

specific-wikia-trivia.js

// Defaults are designed for the Wings of Fire wiki.
// http://wingsoffire.wikia.com

var what = "/wiki/" + prompt("What do you want trivia about?", ["Tsunami","Umber","Moonwatcher"][Math.floor(Math.random() * 3)]);

$.get(what).done(function(res) {
  try {
    res = (new DOMParser()).parseFromString(res, "text/html");

    window.res = res;

    what = res.querySelector("#WikiaPageHeader .header-title").textContent.trim();

    var trivHeader = res.querySelector("*[id*=rivia]");
    var article = trivHeader.parentNode.parentNode;
    var index = Array.from(article.childNodes).indexOf(trivHeader.parentNode);
    var trivUl = article.childNodes[index + 2];
    var arr = ["-- Trivia on " + what + ": --"];

    for (var i of trivUl.children) {
      arr.push(i.innerText.trim());
    }

    alert(arr.join("\n\n"));
  } catch(e) {
    alert("Oops! I couldn't get you any trivia on the page " + what + ". Sorry!\n\n" + e);
  }
}).error(function(e) {
  alert("Oops! I got a network error.");
});

wikia-trivia-forever-updated.js

// old code from nov 14, 2015 7:26 am ast!

// You only need to run this program once! Just run it, then, if
// you want to see more trivia, click on "OK". If you don't want
// to see any more trivia, click on "Cancel". :)

(function f() {
  var what = "/Special:Random";

  $.get(what).done(function(res) {
    try {
      res = (new DOMParser()).parseFromString(res, "text/html");

      window.res = res;

      what = res.querySelector("#PageHeader .page-header__title").textContent.trim();

      var trivHeader = res.querySelector("*[id*=rivia]");
      if (!trivHeader) return f();
      var article = trivHeader.parentNode.parentNode;
      var index = Array.from(article.childNodes).indexOf(trivHeader.parentNode);
      var trivUl = Array.from(article.childNodes).slice(index).find(el => el.tagName === 'UL');
      var arr = ["-- Trivia on " + what + ": --"];

      /*
      for (var i of trivUl.children) {
        arr.push(i.innerText.trim());
      }
      */

      arr.push(trivUl.children[Math.floor(Math.random() * trivUl.children.length)].innerText.trim().replace(/\s{2,}/g, ' '));

      if (confirm(arr.join("\n"))) f();
    } catch(e) {
      if (confirm("Oops! I couldn't get you any trivia on the page " + what + ". Sorry!\n\n" + e)) f();
    }
  }).error(function(e) {
    alert("Oops! I got a network error.");
  });
}());

wikia-trivia-forever.js

// You only need to run this program once! Just run it, then, if
// you want to see more trivia, click on "OK". If you don't want
// to see any more trivia, click on "Cancel". :)

(function f() {
  var what = "/Special:Random";

  $.get(what).done(function(res) {
    try {
      res = (new DOMParser()).parseFromString(res, "text/html");

      window.res = res;

      what = res.querySelector("#WikiaPageHeader .header-title").textContent.trim();

      var trivHeader = res.querySelector("*[id*=rivia]");
      var article = trivHeader.parentNode.parentNode;
      var index = Array.from(article.childNodes).indexOf(trivHeader.parentNode);
      var trivUl = article.childNodes[index + 2];
      var arr = ["-- Trivia on " + what + ": --"];

      for (var i of trivUl.children) {
        arr.push(i.innerText.trim());
      }

      if (confirm(arr.join("\n\n"))) f();
    } catch(e) {
      if (confirm("Oops! I couldn't get you any trivia on the page " + what + ". Sorry!\n\n" + e)) f();
    }
  }).error(function(e) {
    alert("Oops! I got a network error.");
  });
}());