@reactivex/ix-esnext-esm/iterable/operators/finalize.js

The Interactive Extensions for JavaScript

import { IterableX } from '../iterablex.js';
/** @ignore */
export class FinallyIterable extends IterableX {
    _source;
    _action;
    constructor(source, action) {
        super();
        this._source = source;
        this._action = action;
    }
    *[Symbol.iterator]() {
        try {
            yield* this._source;
        }
        finally {
            this._action();
        }
    }
}
/**
 *  Invokes a specified asynchronous action after the source iterable sequence terminates gracefully or exceptionally.
 *
 * @template TSource The type of the elements in the source sequence.
 * @param {(() => void)} action Action to invoke and await asynchronously after the source iterable sequence terminates
 * @returns {MonoTypeOperatorFunction<TSource>} An operator that returns the source sequence with the
 * action-invoking termination behavior applied.
 */
export function finalize(action) {
    return function finallyOperatorFunction(source) {
        return new FinallyIterable(source, action);
    };
}

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