code: function getNode (el, noCache) {
    if ( noCache === void 0 ) noCache = false;
  
    if (typeof el === 'string') {
      if (typeof window.Vue !== 'undefined') {
        return find(el)
      }
      el = noCache ? find(el) : (cacheNode[el] || (cacheNode[el] = find(el)));
    }
  
    return el
  }
docs: Get Node
  @param  {String|Element} el
  @param  {Boolean} noCache
  @return {Element}