热门面试题与答案和在线测试
面向面试准备、在线测试、教程与实战练习的学习平台

通过聚焦学习路径、模拟测试和面试实战内容持续提升技能。

WithoutBook 将分主题面试题、在线练习测试、教程和对比指南整合到一个响应式学习空间中。

搜索资源库
面试准备

Angular 8 面试题与答案

问题 11. Explain Angular pipes.

Pipes in Angular are used to transform data before displaying it in the view. Examples include date pipe, currency pipe, and uppercase pipe.

Example:

{{ today | date: 'dd/MM/yyyy' }}

这有帮助吗？ 添加评论 查看评论
 

问题 12. What is the purpose of trackBy in ngFor?

The trackBy function is used in ngFor to improve the performance of rendering by helping Angular identify which items have changed, been added, or been removed in a list.

Example:

*ngFor='let item of items; trackBy: trackByFunction'

这有帮助吗？ 添加评论 查看评论
 

问题 13. Explain Angular routing and how it works.

Angular routing is a mechanism that allows navigation between different components in an Angular application. It works by associating a component with a specific route, and the Angular Router takes care of loading the associated component when the route is activated.

Example:

const routes: Routes = [
  { path: 'home', component: HomeComponent },
  { path: 'about', component: AboutComponent },
];

这有帮助吗？ 添加评论 查看评论
 

问题 14. What is Angular template driven forms?

Template-driven forms in Angular are a way to work with forms using directives in the template. The form and its controls are defined in the component's template, and Angular automatically creates and manages the corresponding controls and their data bindings.

Example:


  
  Submit

这有帮助吗？ 添加评论 查看评论
 

问题 15. Explain reactive forms in Angular.

Reactive forms in Angular provide a model-driven approach to handling forms. The form controls are created programmatically in the component, and the component is responsible for managing the form's state and behavior.

Example:

this.myForm = this.fb.group({
  name: ['', Validators.required],
  email: ['', [Validators.required, Validators.email]],
});

这有帮助吗？ 添加评论 查看评论
 

用户评价最有帮助的内容：

版权所有 © 2026，WithoutBook。