Function checkElementDirectives

06.Router/basic/js/vue.js:7320–7329

* Check for element directives (custom elements that should * be resovled as terminal directives). * * @param {Element} el * @param {Object} options

(el, options)

   */

  function checkElementDirectives(el, options) {
    var tag = el.tagName.toLowerCase();
    if (commonTagRE.test(tag)) {
      return;
    }
    var def = resolveAsset(options, 'elementDirectives', tag);
    if (def) {
      return makeTerminalNodeLinkFn(el, tag, '', options, def);
    }
  }

  /**
   * Check if an element is a component. If yes, return