Function drain

src/zip.test.ts:34–40

(i: AsyncIterable<T>)

describe('zipAsync', () => {
    async function drain<T>(i: AsyncIterable<T>): Promise<Array<T>> {
        const values = [];
        for await (const value of i) {
            values.push(value);
        }
        return values;
    }

    test('empty', async () => {
        expect(await drain(zipAsync())).toEqual([]);