25 lines
1011 B
TypeScript
25 lines
1011 B
TypeScript
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import { Observable } from '../Observable';
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import { OperatorFunction } from '../types';
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/**
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* Returns an Observable that emits whether or not every item of the source satisfies the condition specified.
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*
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* ## Example
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* A simple example emitting true if all elements are less than 5, false otherwise
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* ```ts
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* import { of } from 'rxjs';
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* import { every } from 'rxjs/operators';
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*
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* of(1, 2, 3, 4, 5, 6).pipe(
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* every(x => x < 5),
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* )
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* .subscribe(x => console.log(x)); // -> false
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* ```
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*
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* @param {function} predicate A function for determining if an item meets a specified condition.
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* @param {any} [thisArg] Optional object to use for `this` in the callback.
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* @return {Observable} An Observable of booleans that determines if all items of the source Observable meet the condition specified.
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* @method every
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* @owner Observable
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*/
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export declare function every<T>(predicate: (value: T, index: number, source: Observable<T>) => boolean, thisArg?: any): OperatorFunction<T, boolean>;
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