function
stable
Returns an Observable that emits whether or not every item of the source satisfies the condition specified.
every<T>(predicate: (value: T, index: number, source: Observable<T>) => boolean, thisArg?: any): OperatorFunction<T, boolean>
predicate | A function for determining if an item meets a specified condition. |
thisArg | Optional. Default is Optional object to use for |
OperatorFunction<T, boolean>
: An Observable of booleans that determines if all items of the source Observable meet the condition specified.
A simple example emitting true if all elements are less than 5, false otherwise
import { of } from 'rxjs'; import { every } from 'rxjs/operators'; of(1, 2, 3, 4, 5, 6).pipe( every(x => x < 5), ) .subscribe(x => console.log(x)); // -> false
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Code licensed under an Apache-2.0 License. Documentation licensed under CC BY 4.0.
https://rxjs.dev/api/operators/every