Angular 6使用哪个渲染引擎-Renderer2或Ivy Renderer？
[英]Which Rendering Engine does Angular 6 use - Renderer2 or Ivy Renderer?
问题描述
I'm getting confused about rendering engine that Angular 6 and Angular 7 are using. 
我对Angular 6和Angular 7使用的渲染引擎感到困惑。 Since, Ivy renderer is not in completed state to date (March'19). 从那时起，Ivy渲染器至今尚未处于完成状态（19年3月）。 But Angular team says that they have exposed some Ivy renderer APIs in Angular 6. 但是Angular团队说他们已经在Angular 6中公开了一些Ivy渲染器API。
Please someone help me out to clarify about the rendering engines used by Angular 6 and Angular 7. 请有人帮我澄清一下Angular 6和Angular 7使用的渲染引擎。
2 个解决方案
解决方案1
2 已采纳 2019-03-12 06:56:41
By default angular 6 and 7 still use the old renderer (Renderer2) But the beta version of Ivy can be enabled 默认情况下，角度6和7仍使用旧的渲染器（Renderer2），但可以启用beta版本的Ivy
- https://medium.com/lacolaco-blog/quick-start-for-enabling-angular-v6-ivy-compiler-161ef492e243 https://medium.com/lacolaco-blog/quick-start-for-enabling-angular-v6-ivy-compiler-161ef492e243
- https://github.com/angular/angular/issues/21706 https://github.com/angular/angular/issues/21706
On Angular 8 you can opt-in in Ivy Preview 在Angular 8上，您可以选择加入Ivy Preview
- https://medium.com/lacolaco-blog/quick-start-for-enabling-angular-v6-ivy-compiler-161ef492e243 https://medium.com/lacolaco-blog/quick-start-for-enabling-angular-v6-ivy-compiler-161ef492e243
- https://blog.angular.io/a-plan-for-version-8-0-and-ivy-b3318dfc19f7 https://blog.angular.io/a-plan-for-version-8-0-and-ivy-b3318dfc19f7
but to quote the last link regarding angular 8 但引用有关角度8的最后一个链接
Ivy will not be ready for all use cases.
解决方案2
2 2019-03-12 06:58:12
From Angular v4 <= v7 it uses the ViewEngine . 从Angular v4 <= v7开始，它使用ViewEngine 。 And also the Renderer2 method for rendering. 还有用于渲染的Renderer2方法。
In angular 8 ivy will be optional and in angular 9 it will be default. 在角度8中， ivy是可选的，在角度9中， ivy是默认的。
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