11 this.okEvent.emit('the value want to pass'); 12} 13} 14 15 // in another components 16 <ddd (finish)="finish($event)" [init]="value pass in"></ddd> 17 18 $event => will catch the return value 1 // 另外一种写法: 2 import { Component, View, Input, Output, EventEmitter...
import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { HttpModule } from '@angular/http'; import { AppRoutingModule } from './app-routing.module'; import { AppComponent } from './app.component'; import { BookService } from './...
status.emit('Ready'); } } 它有三个用@Input装饰符标记的输入属性: 物业desc以其自然名称装饰 属性parent用别名修饰,以便父组件通过名称owner看到它 属性emoji是getter/setter 方法的组合,因此我们可以添加一些逻辑来为私有变量赋值 它有一个输出属性status用于从子级到父级进行通信。我特意添加了一个OnInit钩子...
templateUrl: './tag-shape.component.html', styleUrls: ['./tag-shape.component.css'] }) export class TagShapeComponent { tagShape: string; @Output() selectShapeEvent = new EventEmitter(); constructor() { } selectShape(shape: string) { this.selectShapeEvent.emit(shape); } }123456789101112131...
Go to the HTML page, use event binding and call a function to set the value. Go to component page (ts) and declare a property with @Output() like,@Output () variable name=new EventEmitter();And emit data using this variable like this.variablename.emit(passing-data) Parent’s Side Go...
styleUrls: ['./tag-shape.component.css'] }) export class TagShapeComponent { tagShape: string; @Output() selectShapeEvent = new EventEmitter(); constructor() { } selectShape(shape: string) { this.selectShapeEvent.emit(shape); }
Let's Open the child component' .ts file (student.component.ts). For use the @Output decorator we have to import, two important decorators, they are Output and EventEmitter. EventEmitter Use in components with the @Output directive to emit custom events synchronously or asynchronously, and regis...
A Component deals with several concerns, among others: It renders the template into the HTML DOM. It accepts data from parent Components using Input properties. It emits data to parent Components using Outputs. It reacts to user input by registering event handlers. It renders the content (ng-...
You can bind to a property change event on the element. Since all prop changes generate a change event other frameworks in the page can import and interact with the same component. $element.on('prop:changed',function(evt){$log.log(evt.detail);$scope.$emit(evt.detail);// $timeout(funct...
因此，接收组件视图如下所示：angular中，防止按钮的两次点击 原