英文:
Type 'Subscription' is missing the following properties from type 'Observable<EnumValue[]>' : source, operator, lift, subscribe, and 3 more
问题
I'll provide a translation of the code and error message without any additional content:
在将Observable<EnumValue[]>分配给Observable<EnumValue[]>时出现问题。
fetchContactLocationStates()
{
this.contactLocationStates$ = this.enumValues$
.pipe(takeUntil(this.destroy$))
.subscribe(x => x.filter((p) => p.CategoryId === EnumCategory.State));
}
错误：
类型 'Subscription' 缺少类型 'Observable<EnumValue[]>' 的以下属性：source、operator、lift、subscribe 等 3 个属性。
英文:
Have issues assigning an Observable<EnumValue[]> to Observable<EnumValue[]>.
fetchContactLocationStates()
{
this.contactLocationStates$ = this.enumValues$
.pipe(takeUntil(this.destroy$))
.subscribe(x => x.filter((p) => p.CategoryId === EnumCategory.State));
}
Error:
> Type 'Subscription' is missing the following properties from type 'Observable<EnumValue[]>' : source, operator, lift, subscribe, and 3 more.
![Type 'Subscription' is missing the following properties from type 'Observable<EnumValue[]>' : source, operator, lift, subscribe, and 3 more](https://i.stack.imgur.com/6oLlD.png)
答案1
得分: 2
contactLocationStates$ 期望值为 Observable<EnumValue[]>。 不应调用 .subscribe()。
import { map } from 'rxjs';
fetchContactLocationStates()
{
this.contactLocationStates$ = this.enumValues$
.pipe(
takeUntil(this.destroy$),
map((x) => x.filter((p) => p.CategoryId === EnumCategory.State))
);
}
英文:
contactLocationStates$ expects the value of Observable<EnumValue[]>. You shouldn't call the .subscribe().
import { map } from 'rxjs';
fetchContactLocationStates()
{
this.contactLocationStates$ = this.enumValues$
.pipe(
takeUntil(this.destroy$),
map((x) => x.filter((p) => p.CategoryId === EnumCategory.State))
);
}
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论