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776 BJavaScriptView Raw
1/**
2 * Returns the element at a specified index in a sequence or undefined if the index is out of range.
3 *
4 * @export
5 * @template T The type of the elements in the source sequence.
6 * @param {Iterable<T>} source iterable sequence to return the element from.
7 * @param {number} index The zero-based index of the element to retrieve.
8 * @returns {(T | undefined)} An iterable sequence that produces the element at the specified
9 * position in the source sequence, or undefined if the index is outside the bounds of the source sequence.
10 */
11export function elementAt(source, index) {
12 let i = index;
13 for (const item of source) {
14 if (i === 0) {
15 return item;
16 }
17 i--;
18 }
19 return undefined;
20}
21
22//# sourceMappingURL=elementat.mjs.map