[英]How to consume single Observable property in view from Angular2 component using async pipe?
If I have a component with a property of: 如果我的组件具有以下属性:
import { Component, OnInit } from 'angular2/core';
import { CarService } from 'someservice';
@Component({
selector: 'car-detail',
templateUrl: './app/cars/car.component.html'
})
export class CarComponent implements OnInit {
model: Observable<Car>;
constructor(
private _carService: CarService
) { }
ngOnInit() {
// begin benefit setup
this.model = this._carService.get(5);
}
}
for instance, and I want to in my view use an async pipe to subscribe to that and use the properties as text, how can you actually subscribe to it? 例如,在我看来,我想使用一个异步管道来订阅它并使用属性作为文本,那么如何实际订阅它呢? For instance: 例如:
<template #mycar = "model | async" >
<p>{{ myCar?.make }}</p>
</template>
I am new to Angular2 and not sure if I am doing something wrong or not. 我是Angular2的新手,不确定自己是否做错了事。
I believe you were close to a good solution. 我相信您已经接近一个好的解决方案。
<template *ngIf = "model | async as mycar" > <p>{{ mycar.make }}</p> </template>
Try: 尝试:
<template #mycar = "model | async" >
<p>{{ (myCar | async).make }}</p>
</template>
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