Function purgeElement

src/prototype/dom/dom.js:1180–1188

(element)

  // Performs cleanup on a single element before it is removed from the page.
  function purgeElement(element) {
    var uid = getUniqueElementID(element);
    if (uid) {
      Element.stopObserving(element);
      if (!HAS_UNIQUE_ID_PROPERTY)
        element._prototypeUID = UNDEFINED;
      delete Element.Storage[uid];
    }
  }

  function purgeCollection(elements) {
    var i = elements.length;