Lite Promise.sync using async/await

promiseUtils.js

const next = async (it, callback) => {
    const { value, done } = it.next()
    if (done) return []

    const result = await callback(value)
    const nextResult = await next(it, callback)
    return [result, ...nextResult]
}

const sync = async (value, callback) => {
    const it = value[Symbol.iterator]()
    const res = await next(it, callback)
    return res
}

export default {
    sync
}

// Usage: 
/**
const result = await sync([1000, 500], async (value) => {
    const res = await new Promise((res) => { setTimeout(res, value, value * 2) })
    return res
})

console.log(result) // [2000, 1000] after 1500 ms
*/