source: trip-planner-front/node_modules/rxjs/internal/operators/first.d.ts@ 6a80231

Last change on this file since 6a80231 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

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1import { Observable } from '../Observable';
2import { OperatorFunction } from '../../internal/types';
3export declare function first<T, D = T>(predicate?: null, defaultValue?: D): OperatorFunction<T, T | D>;
4export declare function first<T, S extends T>(predicate: (value: T, index: number, source: Observable<T>) => value is S, defaultValue?: S): OperatorFunction<T, S>;
5export declare function first<T, D = T>(predicate: (value: T, index: number, source: Observable<T>) => boolean, defaultValue?: D): OperatorFunction<T, T | D>;
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