airopt-manager/adi-ui/.pnpm-store/v10/files/18/e922c81aebc9c71611a1364927b498c5725b3cc1c2bd887e74c87967e45fd2bd0bd1d6a1398c1f7348864977d2a202f258b5e3c0c1cecca4ce97ce6e9bcee1

import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
export function pairwise() {
    return operate((source, subscriber) => {
        let prev;
        let hasPrev = false;
        source.subscribe(createOperatorSubscriber(subscriber, (value) => {
            const p = prev;
            prev = value;
            hasPrev && subscriber.next([p, value]);
            hasPrev = true;
        }));
    });
}
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