它将返回一个新的可观察对象，该对象将发出该错误，本质上是将其沿管道向下传递。throwError(error)...
在管道操作符中使用throwError可能会有问题，因为throwError observable可能只是根据后续操作沿管道传递。有...
console.log('caught mapping error and rethrowing', err); return throwError(err); }), catchError(err => { console.log('caught rethrown error, providing fallback value'); return of([]); }) ) .subscribe( res => console.log('HTTP response', res), err => console.log('HTTP Error', ...
问当我在rxjs的管道中出现错误时，如何做‘un订票’？EN从 BERT 开始，预训练模型(PLMs)+微调(fine...
我得到了`retryWhen(errors => concat(errors.pipe(delay(750),take(2)),throwError(errors)))`但它不会解开原始错误. (5认同) Edd*_*Lin 16 重试5次,延迟500ms:\n RxJS 6.x\n \n 使用索引来计数\n retryWhen将的误差 Observable转换为timerorthrowError\n\n retryWhen(concatMap((err, index) =...
onErrorResumeNext 开启第一个流并且在失败的时候继续进行下一个流。错误被忽略掉。 const stream1$ = of(1, 2).pipe( tap(i => { if(i>1) throw 'error'}) //fail after first element ); const stream2$ = of(3,4); onErrorResumeNext(stream1$, stream2$) ...
of(error) : throwError(error)) )) ); }Example #2Source File: unauthorized.interceptor.ts From Smersh with MIT License 6 votes intercept( req: HttpRequest<any>, next: HttpHandler ): Observable<HttpEvent<any>> { return next.handle(req).pipe( catchError((error: HttpErrorResponse) => {...
//Return an empty Observable which gets collapsed in the output return EMPTY; }) ) const observable = from([0, 1, 2, 3, 4, 5]).pipe( flatMap((value) => iif(() => value != 3, of(value), throwError(new Error("Value cannot be 3")) ...
import { of, interval, timer, delay, catchError } from 'rxjs'; import { throwError } from 'rxjs'; import { map, delay } from 'rxjs/operators'; // 示例:使用 catchError 处理错误 const errorObservable = interval(1000).pipe( map(x => { if (x === 2) { throw new Error('An ...
import{throwError,of}from'rxjs';import{handleError,unwrapSuccess,unwrapError}from'rxjs-errors';constmyStream$=of('some value').pipe(handleError(),);myStream$.subscribe(value=>console.log(value),// { type: 'SuccessWrapper', value: 'some value' }error=>console.log(error),// never called...