Function callAttach

06.Router/basic/js/vue.js:8192–8196

* Iterator to call attached hook * * @param {Vue} child

(child)

     */

    function callAttach(child) {
      if (!child._isAttached && inDoc(child.$el)) {
        child._callHook('attached');
      }
    }

    /**
     * Callback to recursively call detached hook on children