angular2
Version:
Angular 2 - a web framework for modern web apps
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TypeScript
import { Promise, Observable, EventEmitter } from 'angular2/src/facade/async';
import { ChangeDetectorRef, PipeOnDestroy, PipeTransform } from 'angular2/src/core/change_detection';
/**
* The `async` pipe subscribes to an Observable or Promise and returns the latest value it has
* emitted.
* When a new value is emitted, the `async` pipe marks the component to be checked for changes.
*
* ### Example
* The example below binds the `time` Observable to the view. Every 500ms, the `time` Observable
* updates the view with the current time.
*
* ```
* import {Observable} from 'angular2/core';
* @Component({
* selector: "task-cmp",
* template: "Time: {{ time | async }}"
* })
* class Task {
* time = new Observable<number>(observer => {
* setInterval(_ =>
* observer.next(new Date().getTime()), 500);
* });
* }
* ```
*/
export declare class AsyncPipe implements PipeTransform, PipeOnDestroy {
private _strategy;
constructor(_ref: ChangeDetectorRef);
onDestroy(): void;
transform(obj: Observable<any> | Promise<any> | EventEmitter<any>, args?: any[]): any;
}