refresh 完所有 LView 后,会 run++ 记入 white 执行的次数 (white 不可执行超过 10 次),然后开始执行 after render callback,它会先跑 Angular 内部注册的 after render callback,稍后才执行我们注册的。 执行完 internal after render callback 以后,它会检查 LView 是否肮脏。如果肮脏就 continue。 white + c...
Now let’s see how to render the drop-down list, here isthe link. I’ll not repeat the things which are the same in each component. Now, you know 70-80% about Angular Material. They are actually very easy to use. Let’s go to theoverview taband look at an example. Look how mu...
变成了 2 个 variable methods,read and assign 都变成了 method call。 //beforeconst value = 0;//declare variableconst value2 = value;//passing variablevalue = 1;//assign value to variablevalue++//other assign operator//afterconst [getValue, setValue] = declare(0); const value2=getValue(...
- `renderApplication` method no longer accepts a root component as first argument. Instead, provide a bootstrapping function that returns a `Promise<ApplicationRef>`. Before ```ts const output: string = await renderApplication(RootComponent, options); ``` Now ```ts const bootstrap = () =>...
Each request results in the appropriate view for the requested route. The renderModule() function renders the view within the tag of the template, creating a finished HTML page for the client. 每个请求最终会导致其对应的路由视图被渲染在模板的 app 标签里。 Because a Universal app doesn't execut...
angular2.reRenderUIPart(); } }); } 谁通知 Angular 更新视图 Zone负责通知 Angular 进行视图更新,Angular 封装有NgZone,简单来说,通过 Angular 的部分源码我们可以知道有一个叫作ApplicationRef的东西负责监听 NgZone 中的onTurnDone事件,每当该事件触发时,它就执行trick方法进行变化检测的基本工作。
引入了 Render 渲染层,能够更好地实现跨平台 引入了视图封装机制,可以灵活地控制视图渲染方式 路由支持模块懒加载、预加载等功能 编译器支持 AOT 模式,大大减少了包的大小和提高了应用的性能Angular 2.x 与 Angular 4.x 区别大么?令人欣慰的是,Angular 4.x 向后兼容 Angular 2.x 版本。Angular...
After theapp.component.spec.tsfile, we found many things likedescribe,beforeEach,fixture,expect,TestBed, etc. The best way to learn is by doing things ourselves, so I will remove all code inapp.component.spec.tsandproduct.service.spec.tsfiles, and write each test. ...
The `renderModuleFactory` calls can be replaced with `renderModule`. ### service-worker - The `SwUpdate#activated` observable is deprecated. The `SwUpdate#activated` observable only emits values as a direct response to calling `SwUpdate#activateUpdate()` and was only useful for determining whe...
The directive is asking the datasource for data to build and render elements until it has enough elements to fill out the viewport. It will start retrieving new data for new elements again if the user scrolls up/down to the edge of visible element list. ...