Better File-Watcher

index.js

(function () {
  var watcher = new FileWatcher(),
      resources = ResourceCollector.collect();
  watcher.addListener(function (url) {
    // If the updated item is CSS
    if (url.indexOf('css') !== -1) {
      // Grab all of the links
      [].slice.call(document.querySelectorAll('link')).forEach(function (link) {
        // If the link's href matches, update it
        var href = link.href;
        if (href.indexOf(url) !== -1) {
          link.href = href + (href.indexOf('?') === -1 ? '?' : '') + 1;
        }
      });
    } else {
    // Otherwise, reload
      location.reload();
    }
  });
  watcher.watch(resources, 8);
}());