Function callUpdatedHooks

vue.js:4451–4461

(queue)

    //触发更新updated 钩子函数
    function callUpdatedHooks(queue) {
        var i = queue.length;
        while (i--) {
            var watcher = queue[i];
            var vm = watcher.vm; //获取到虚拟dom
            if (vm._watcher === watcher && vm._isMounted) { //判断watcher与vm._watcher 相等 _isMounted已经更新触发了 mounted 钩子函数
                //触发updated 更新数据钩子函数
                callHook(vm, 'updated');
            }
        }
    }

    /**
     * Queue a kept-alive component that was activated during patch. 对补丁期间激活的kept-alive组件进行队列。