import { CommonModule } from '@angular/common'; import { bootstrapApplication } from '@angular/platform-browser'; @Component({ selector: 'my-app', standalone: true, imports: [CommonModule], template: ` <h1>Calculate Area</h1> <p>Answer : {{ area() }}</p> <button (click)="calcu...
import { ManageHeroesComponent } from'./manage-heroes/manage-heroes.component';//使用无组件路由,即分组路由,可以不需要用来只管理分组路由的组件const adminRoutes: Routes =[ { path:'admin', component: AdminComponent, canActivate: [AuthGuard], children: [ // 配置canActivate { path:'', canActivateC...
<button type="button" (click)="add(2)">加2</button> 第三步:在父组件app.component.ts中引入ViewChild,@viewchild传入标签引用字符child,由变量child接收。除了使用标签引用child,你也可以通过直接传入子组件ChildComponent实现子组件的引用。 import { Component, ViewChild } from '@angular/core'; import { ...
在项目根路径下运行命令ng g component home和ng g component books来新增home和books两个组件,此时可能会出现too many symbolic links encountered的错误: 解决办法: 删除根目录下的node_modules目录 更新cli命令行工具npm install -g @angular/cli 重新安装:npm install 配置路由 在路由配置文件中为routes赋值: cons...
export class ChildComponent { @Output() newItemEvent = new EventEmitter<string>(); } 1. 2. 3. 4. 5. 第二步:在子组件child.component.html中添加点击事件,获取输入内容,点击按钮触发addNewItem()方法。 <label>输入项目名:<inputtype="text"#newItem/></label><buttontype="button"(click)="add...
In the component class, You have to define the method for handling click events. This method is called always when a user has clicked a button. defined msg variable of type string. On clicking button event, the msg variable is updated with the status “button is clicked”. ...
In this article, we are going to learn how to create components, display a component using router outlet, show a menu list on mouse over, & load component on button click event.
import { Component } from '@angular/core'; import { Router } from '@angular/router'; @Component({ selector: 'app-example', template: ` <button (click)="redirectToExternalUrl()">跳转到外部URL</button> ` }) export class ExampleComponent { constructor(private router: Router) { } redirectT...
<inputtype="button"value="商品详情"(click)="toProductDetails()"><!-- 事件绑定 --> ts // classconstructer(privaterouter:Router){// 依赖注入}toProductDetails(){this.router.navigate(['/product']);} 路由传参 在查询参数中传参 传入(html) ...
您可以使用*ngIf重新呈现模板的内容：