管道操作符时如何返回可观察的`forkJoin`

Abr*_*kad 5 rxjs angular ngxs

在我拥有这个运行良好的解析器之前:

resolve() {
    return forkJoin(
        this.getData1(),
        this.getData2(),
        this.getData3()
    );
}
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现在我必须做一些实际上不起作用的事情:

  resolve() {
    return this.actions$
      .pipe(
        ofActionSuccessful(SomeSctonSuccess),
        forkJoin(
           this.getData1(),
           this.getData2(),
           this.getData3()
        )
      );
    }
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因为我遇到了这个错误:

“Observable<[any, any, any, any]>”类型的参数不可分配给“OperatorFunction”类型的参数。类型 'Observable<[any, any, any, any]>' 不匹配签名 '(source: Observable): Observable'。

任何想法如何解决?

现在我注意在发生forkJoin后返回我的唯一https://ngxs.gitbook.io/ngxs/advanced/action-handlersofActionSuccessful(SomeSctonSuccess)

Rit*_*Dey 4

使用exhaustMap运算符。它映射到内部可观察量,忽略其他值,直到该可观察量完成

import { forkJoin } from 'rxjs';
import { exhaustMap } from 'rxjs/operators';

resolve() {
    return this.actions$
      .pipe(
        ofActionSuccessful(SomeSctonSuccess),
        exhaustMap(() => {
         return forkJoin(
             this.getData1(),
             this.getData2(),
             this.getData3()
           )
       })

      );
    }
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