How to create a list and create variables that populate the list as the result of multiple resolved promises?

Question

Currently, I'm creating and assigning values to a few variables at once, as the result of corresponding asynchronous functions resolving as such:

const [first, second] = await Promise.all([asynFunc(),asynFunc()])

Then, I'm creating an array with first and second:

const res = [first, second]

Is there a way to combine the steps to both create res as well as create and assign first and second?

score 0 · Answer 1 · answered Nov 26 '19 at 21:30

0

You can get array at the first step

const res = await Promise.all([asynFunc(),asynFunc()])

answered Nov 26 '19 at 21:30

lfermincas

I want to create the array and create the variables `first` and `second` – yalpsid eman Nov 26 '19 at 21:34

score 0 · Accepted Answer · answered Nov 26 '19 at 21:40

0

const res =  [first, second] = await Promise.all([asynFunc(),asynFunc()])

answered Nov 26 '19 at 21:40

Jacob Penney

1

That does create *global* variables `first` and `second` and will not work in strict mode – Bergi Nov 26 '19 at 22:06

score 0 · Answer 3 · answered Nov 26 '19 at 22:07

0

You're probably looking for

const res = await Promise.all([asynFunc(),asynFunc()]),
      [first, second] = res;

answered Nov 26 '19 at 22:07

Bergi

3 Answers3