Avoid picking the same random word in a list until the list is exhausted

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0

This function picks a random word without repeating a word twice in a row.

How can I improve it so that it doesn't pick the same word until the list is exhausted, i.e. it's gone through the whole list?

animateRandomWords() {
    List words = ['changemakers', 'community organizers', 'lovers', 'friends', 'doers', 'movers and shakers'];
    var rnd = new Random();
    randomWord = words[rnd.nextInt(words.length)];
    Timer timer = new Timer.periodic(new Duration(seconds: 4), (f) {
      HtmlElement el;
      el = $['random-word'];
      el.style.opacity = '0';
      new Timer(new Duration(milliseconds: 750), () {
        el.style.opacity = '1';
        var newWord;
        do {
          newWord = words[rnd.nextInt(words.length)];
        } while (newWord == randomWord);
        randomWord = newWord;
      });
    });

asked 1 min ago

David Notik

411

Avoid picking the same random word in a list until the list is exhausted