AngularFire2类型:“属性'获取'不存在于类型'FirebaseObjectObservable< any>'" [英] AngularFire2 typings: "Property 'take' does not exist on type 'FirebaseObjectObservable<any>'"
问题描述
我已将我的离子应用程序从beta 11更新为rc0。所以这意味着我已经从typescript 1.8切换到2.
I've updated my ionic app from beta 11 to rc0. So it means I've switched from typescript 1.8 to 2.
我根据这个网站配置了AngularFire2
Ionic 2 RC0入门,Firebase 3 + AngularFire 2
I've configured AngularFire2 according to this site Getting Started with Ionic 2 RC0, Firebase 3 + AngularFire 2
我有这行代码工作:
this.af.database.object(`comments/${commentId}`).take(1).subscribe({
data => console.log(data)
});
但现在收到此错误
错误TS2339:
'FirebaseObjectObservable'类型中不存在属性'take'。
error TS2339: Property 'take' does not exist on type 'FirebaseObjectObservable'.
任何关于发生了什么的想法?我该怎么解决这个问题?
Any ideas on what's going on? How can I solve this?
推荐答案
对于rxjs(v6)和angularfire(v5)的更多最新版本,我使用的语法是:
For more recents versions of rxjs (v6) and angularfire (v5), the syntax I used is :
import { take } from 'rxjs/operators'
...
this.afAuth.authState.pipe(take(1)).subscribe(user => {
...
})
这篇关于AngularFire2类型:“属性'获取'不存在于类型'FirebaseObjectObservable< any>'"的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!