Function retrieve

src/prototype/dom/dom.js:3158–3168

* Element.retrieve(@element, key[, defaultValue]) -> ? * * Retrieves custom metadata set on `element` with [[Element.store]]. * * If the value is `undefined` and `defaultValue` is given, it will be * stored on the element as its new value for that key, then returned.

(element, key, defaultValue)

   *  stored on the element as its new value for that key, then returned.
  **/
  function retrieve(element, key, defaultValue) {
    if (!(element = $(element))) return;
    var storage = getStorage(element), value = storage.get(key);

    if (Object.isUndefined(value)) {
      storage.set(key, defaultValue);
      value = defaultValue;
    }

    return value;
  }


  Object.extend(methods, {