@reactivex/ix-es5-esm
Version:
The Interactive Extensions for JavaScript
11 lines (10 loc) • 618 B
TypeScript
/**
* Returns the element at a specified index in a sequence or undefined if the index is out of range.
*
* @template T The type of the elements in the source sequence.
* @param {Iterable<T>} source iterable sequence to return the element from.
* @param {number} index The zero-based index of the element to retrieve.
* @returns {(T | undefined)} An iterable sequence that produces the element at the specified
* position in the source sequence, or undefined if the index is outside the bounds of the source sequence.
*/
export declare function elementAt<T>(source: Iterable<T>, index: number): T | undefined;