| 1 | import { wrapWithAbort } from './operators/withabort';
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| 2 | import { throwIfAborted } from '../aborterror';
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| 3 | /**
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| 4 | * Returns the last element of an async-iterable sequence that satisfies the condition in the predicate if given
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| 5 | * otherwise the last item in the sequence, or a default value if no such element exists.
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| 6 | *
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| 7 | * @export
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| 8 | * @template T The type of elements in the source sequence.
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| 9 | * @param {AsyncIterable<T>} source The source async-iterable sequence.
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| 10 | * @param {OptionalFindOptions<T, S>} [options] The options which include an optional predicate for filtering,
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| 11 | * thirArg for binding, and abort signal for cancellation
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| 12 | * @returns {(Promise<S | undefined>)} A promise containing the last value that matches the optional predicate or last item, otherwise undefined.
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| 13 | */
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| 14 | export async function last(source, options) {
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| 15 | const { ['signal']: signal, ['thisArg']: thisArg, ['predicate']: predicate = async () => true } = options || {};
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| 16 | throwIfAborted(signal);
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| 17 | let i = 0;
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| 18 | let result;
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| 19 | for await (const item of wrapWithAbort(source, signal)) {
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| 20 | if (await predicate.call(thisArg, item, i++, signal)) {
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| 21 | result = item;
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| 22 | }
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| 23 | }
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| 24 | return result;
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| 25 | }
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| 26 |
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| 27 | //# sourceMappingURL=last.mjs.map
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