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49 lines
1.7 KiB
TypeScript
49 lines
1.7 KiB
TypeScript
import { MonoTypeOperatorFunction } from '../types';
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/**
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* Returns an Observable that mirrors the source Observable with the exception of an `error`. If the source Observable
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* calls `error`, this method will resubscribe to the source Observable for a maximum of `count` resubscriptions (given
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* as a number parameter) rather than propagating the `error` call.
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*
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* 
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*
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* Any and all items emitted by the source Observable will be emitted by the resulting Observable, even those emitted
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* during failed subscriptions. For example, if an Observable fails at first but emits [1, 2] then succeeds the second
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* time and emits: [1, 2, 3, 4, 5] then the complete stream of emissions and notifications
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* would be: [1, 2, 1, 2, 3, 4, 5, `complete`].
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*
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* ## Example
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* ```ts
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* import { interval, of, throwError } from 'rxjs';
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* import { mergeMap, retry } from 'rxjs/operators';
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*
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* const source = interval(1000);
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* const example = source.pipe(
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* mergeMap(val => {
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* if(val > 5){
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* return throwError('Error!');
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* }
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* return of(val);
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* }),
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* //retry 2 times on error
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* retry(2)
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* );
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*
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* const subscribe = example.subscribe({
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* next: val => console.log(val),
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* error: val => console.log(`${val}: Retried 2 times then quit!`)
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* });
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*
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* // Output:
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* // 0..1..2..3..4..5..
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* // 0..1..2..3..4..5..
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* // 0..1..2..3..4..5..
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* // "Error!: Retried 2 times then quit!"
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* ```
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*
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* @param {number} count - Number of retry attempts before failing.
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* @return {Observable} The source Observable modified with the retry logic.
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* @method retry
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* @owner Observable
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*/
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export declare function retry<T>(count?: number): MonoTypeOperatorFunction<T>;
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