Function extractContent

01.GettingStarted/js/vue.js:1372–1389

* Extract raw content inside an element into a temporary * container div * * @param {Element} el * @param {Boolean} asFragment * @return {Element|DocumentFragment}

(el, asFragment)

   */

  function extractContent(el, asFragment) {
    var child;
    var rawContent;
    /* istanbul ignore if */
    if (isTemplate(el) && isFragment(el.content)) {
      el = el.content;
    }
    if (el.hasChildNodes()) {
      trimNode(el);
      rawContent = asFragment ? document.createDocumentFragment() : document.createElement('div');
      /* eslint-disable no-cond-assign */
      while (child = el.firstChild) {
        /* eslint-enable no-cond-assign */
        rawContent.appendChild(child);
      }
    }
    return rawContent;
  }

  /**
   * Trim possible empty head/tail text and comment