iterate through a list of promises, waiting for the item to resolve before moving to the next item

sequential_promise_list.js

function seqPromise(){
  function* generator() {
    let func = () => Promise.resolve()
    while(true)
    func = yield func()
  }
  const gen = generator()
  return function genPush(list, fn) {
    function fnWrap(fn, item) {
      return () => fn(item)
    }
    gen.next(fnWrap(fn, list.pop())).value.then(() => {
      if (list.length) {
	genPush(list, fn)
      }
    })
  }
}

const test = seqPromise()
test([1,2,3], () => Promise.resolve())