Is the order of Promise.all.then results guaranteed?

Asked Mar 18 '15 at 18:07

Active Mar 18 '15 at 18:23

Viewed 74 times

Assume this scenario:

Promise.all( [p1, p2] )
.then( v => {
   //v[0] contains results of p1?
     });

Assuming that both p1 and p2 are resolved, is it safe to assume that v[0] will contain the result for p1 and v[1]will contain the result for p2? Or can I only assume that v will contain 2 values for each promise and cannot assume where each value is?

edited Mar 18 '15 at 18:14

user2864740

57,407
13
129
202

asked Mar 18 '15 at 18:07

Luis Abreu

3,566
7
31
55

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/all – Kevin B Mar 18 '15 at 18:09
1

The order is maintained with respect to the input. – user2864740 Mar 18 '15 at 18:09
I don't see why this is downvoted. It's a valid question. – Felix Kling Mar 18 '15 at 18:12
Well, the title wasn't particularly good .. but I agree it's a valid question. – user2864740 Mar 18 '15 at 18:14
1

@FelixKling: I didn't downvote, but it's a duplicate not a valid question :-) – Bergi Mar 18 '15 at 19:52
@Bergi: Even better :) – Felix Kling Mar 18 '15 at 19:54

Is the order of Promise.all.then results guaranteed?

0 Answers0