Function sampleItems

apps/daily-ai-trigger/src/handler.ts:122–129

* Randomly sample a specified number of elements from an array

(items: T[], sampleSize: number)

 * Randomly sample a specified number of elements from an array
 */
function sampleItems<T>(items: T[], sampleSize: number): T[] {
	const copy = [...items];
	for (let i = copy.length - 1; i > 0; i--) {
		const j = Math.floor(Math.random() * (i + 1));
		[copy[i], copy[j]] = [copy[j], copy[i]];
	}
	return copy.slice(0, sampleSize);
}