rxjs
Version:
Reactive Extensions for modern JavaScript
40 lines • 1.32 kB
TypeScript
/** @prettier */
import { MonoTypeOperatorFunction } from '../types';
/**
* Skip the last `count` values emitted by the source Observable.
*
* 
*
* `skipLast` returns an Observable that accumulates a queue with a length
* enough to store the first `count` values. As more values are received,
* values are taken from the front of the queue and produced on the result
* sequence. This causes values to be delayed.
*
* ## Example
* Skip the last 2 values of an Observable with many values
* ```ts
* import { range } from 'rxjs';
* import { skipLast } from 'rxjs/operators';
*
* const many = range(1, 5);
* const skipLastTwo = many.pipe(skipLast(2));
* skipLastTwo.subscribe(x => console.log(x));
*
* // Results in:
* // 1 2 3
* ```
*
* @see {@link skip}
* @see {@link skipUntil}
* @see {@link skipWhile}
* @see {@link take}
*
* @throws {ArgumentOutOfRangeError} When using `skipLast(i)`, it throws
* ArgumentOutOrRangeError if `i < 0`.
*
* @param {number} skipCount Number of elements to skip from the end of the source Observable.
* @returns {Observable<T>} An Observable that skips the last count values
* emitted by the source Observable.
*/
export declare function skipLast<T>(skipCount: number): MonoTypeOperatorFunction<T>;
//# sourceMappingURL=skipLast.d.ts.map