Simple TS batching function

batching.ts

// Sorry for the indentation size! 
// Github does not let me change it and applied the wrong setting!

function batches<T>(unbatched: T[], batchSize: number) {
	const numOfBatches = Math.ceil(unbatched.length / batchSize);
    const batchIndexes = Array.from(
        new Array(numOfBatches), 
        (_, i) => i * batchSize)
    );
	const batches = batchIndexes.map((i) =>
		unbatched.slice(i, i + batchSize)
	);

	return {
		unbatched,
		batchSize,
		numOfBatches,
		batchIndexes,
		batches,
	};
}