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41 lines
1.3 KiB
TypeScript
41 lines
1.3 KiB
TypeScript
import { MonoTypeOperatorFunction } from '../types';
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/**
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* Skip the last `count` values emitted by the source Observable.
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*
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* 
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*
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* `skipLast` returns an Observable that accumulates a queue with a length
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* enough to store the first `count` values. As more values are received,
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* values are taken from the front of the queue and produced on the result
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* sequence. This causes values to be delayed.
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*
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* ## Example
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* Skip the last 2 values of an Observable with many values
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* ```ts
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* import { range } from 'rxjs';
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* import { skipLast } from 'rxjs/operators';
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*
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* const many = range(1, 5);
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* const skipLastTwo = many.pipe(skipLast(2));
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* skipLastTwo.subscribe(x => console.log(x));
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*
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* // Results in:
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* // 1 2 3
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* ```
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*
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* @see {@link skip}
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* @see {@link skipUntil}
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* @see {@link skipWhile}
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* @see {@link take}
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*
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* @throws {ArgumentOutOfRangeError} When using `skipLast(i)`, it throws
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* ArgumentOutOrRangeError if `i < 0`.
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*
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* @param {number} count Number of elements to skip from the end of the source Observable.
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* @returns {Observable<T>} An Observable that skips the last count values
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* emitted by the source Observable.
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* @method skipLast
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* @owner Observable
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*/
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export declare function skipLast<T>(count: number): MonoTypeOperatorFunction<T>;
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