| 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 element at a specified index in a sequence or undefined if the index is out of range.
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| 5 | *
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| 6 | * @export
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| 7 | * @template T The type of the elements in the source sequence.
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| 8 | * @param {AsyncIterable<T>} source async-iterable sequence to return the element from.
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| 9 | * @param {number} index The zero-based index of the element to retrieve.
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| 10 | * @param {AbortSignal} [signal] The optional abort signal to be used for cancelling the sequence at any time.
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| 11 | * @returns {(Promise<T | undefined>)} An async-iterable sequence that produces the element at the specified
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| 12 | * position in the source sequence, or undefined if the index is outside the bounds of the source sequence.
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| 13 | */
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| 14 | export async function elementAt(source, index, signal) {
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| 15 | throwIfAborted(signal);
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| 16 | let i = index;
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| 17 | for await (const item of wrapWithAbort(source, signal)) {
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| 18 | if (i === 0) {
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| 19 | return item;
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| 20 | }
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| 21 | i--;
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| 22 | }
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| 23 | return undefined;
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| 24 | }
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| 25 |
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| 26 | //# sourceMappingURL=elementat.mjs.map
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