async for each

async function asyncForEach(array, callback) {
    for (let index = 0; index < array.length; index++) {
        await callback(array[index], index, array);
    }
}

async function asyncForEachByFour(array, callback) {
    for (let index = 0; index < array.length; index += 4) {
        const asyncArr = [];
        for (let j = index; j < index + 4 && j < array.length; j++) {
            asyncArr.push(callback(array[j], j, array))
        }
        await Promise.all(asyncArr);
    }
}

async function asyncQueues(
    array: string[],
    callback: (address: string) => Promise<void>,
    numQueues: number,
) {
    const queues: Record<string, string[]> = {}

    for (let index = 0; index < array.length; index += numQueues) {
        for (let j = 0; j < numQueues && j + index < array.length; j++) {
            queues[j] = queues[j] || []
            queues[j].push(array[j + index])
        }
    }

    await Promise.all(Object.values(queues).map(async arr => {
        for (const a of arr) {
            await callback(a)
        }
    }))
}