本书将为读者提供一个关于 JavaScript 测试驱动开发(TDD)的完整指南,然后深入探讨 Angular 的方法。它将提供清晰的、逐步的示例,不断强调 TDD 的最佳实践。本书将同时关注使用 Karma 进行单元测试和使用 Protractor 进行端到端测试,不仅关注如何使用工具,还要理解它们的构建原因以及为什么应该使用它们。在整个过程中,将...
UpgradeModule, HttpModule ], declarations: [ BookListComponent, ], entryComponents: [ BookListComponent, }) export class AppModule { constructor(private upgrade: UpgradeModule) { } ngDoBootstrap() { this.upgrade.bootstrap(document.documentElement, ['yourApp']); } } ...
Earlier we bound the ngSubmit event to a method called submitCompany; let’s go to the component and add that now: export class ContactFormComponent implements OnInit { submitCompany(form){ console.log(form.value); alert("The form was submitted"); form.reset(); } } The form parameter...
The@angular/localize/initpolyfill will no longer be added automatically to projects. To prevent runtime issues, ensure that this polyfill is manually included in the "polyfills" section of your "angular.json" file if your application relies on Angular localization features. @schematics/angular @angu...
It features a component-based framework designed for creating scalable web applications, along with a comprehensive set of integrated libraries that cover routing, form management, client-server communication, and other essential functions. Additionally, Angular provides development tools to assist users in...
(event.target), 100); });}function confirmOption(target){ if(!confirm('are you sure?')){ target.classList.toggle('grey'); } else { //your code to send the data and redirect to another page }} .button1 { height:1.5cm; width: 4.5cm; padding: 15px 32px; font-size: 16px; ...
import{Component,ErrorHandler,inject}from'@angular/core';import{bootstrapApplication}from'@angular/platform-browser';import{Observable,throwError}from'rxjs';import{catchError}from'rxjs/operators';import{HttpInterceptor,HttpRequest,HttpHandler,HttpEvent,HttpErrorResponse,HTTP_INTERCEPTORS,httpResource,provideHttp...
因此，接收组件视图如下所示：angular中，防止按钮的两次点击 原
</mat-form-field> And then to write the following function in the component file: public doFilter = (value: string) => { this.dataSource.filter = value.trim().toLocaleLowerCase(); } Finally, because we are using the matInput directive to transform regular input into the material inpu...
Using Array#map: const arr = [ { id: 1, questionText: 'This is a test question for tests', answerOptions: [ { answerText: 'A', isCorrect: true }, { answerText: 'B', isCorrect: false } ], difficulty: 1 }, { id: 2, questionText: 'This is another test question for tests'...