@future-widget-lab/record-set/src/libs/record-set/helpers/at/at.helper.ts

A dedicated data structure for in-memory record collections, offering fluent, immutable APIs for MongoDB-like querying, sorting, and transformation.

type AtOptions<TRecord> = {
  index: number;
  records: Array<TRecord>;
};

/**
 * @description
 * Use this helper to retrieve the record at the specified index, or null if out of bounds.
 */
export const at = <TRecord>(options: AtOptions<TRecord>): TRecord | null => {
  const { index, records } = options;

  return records.at(index) ?? null;
};