What's the equivalent of Angular's $q in Angular2?

Question

What's the equivalent of Angular's $q in Angular2? Specifically, I'm looking for $q.when, which allowed you to do something like:

return $q.when(['TestResponse']);

EcmaScript 6 [Promise](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Promise) — Tushar, Jun 09 '16 at 07:23

score 21 · Accepted Answer · edited Jan 31 '17 at 20:19

21

new Promise((resolve, reject) => { 
  if(xxx) {
    resolve('ok');
  } else {
    reject('error');
  }
}).then(x => doSomething())

edited Jan 31 '17 at 20:19

qchap

answered Jun 09 '16 at 07:22

2

What if we're stuck at using ES5? What should we do? – Saeed Neamati Mar 16 '17 at 19:35
IMHO stay with Angular1.x – Günter Zöchbauer Mar 16 '17 at 19:37
1

That's of course an option. But in slow migration scenarios a solution can help. – Saeed Neamati Mar 16 '17 at 19:38
Actually I don't know about ES5 with Angular2. – Günter Zöchbauer Mar 16 '17 at 19:39

score 1 · Answer 2 · edited May 18 '21 at 02:54

1

You can use the native ES6 Promise. One of the main reasons to make the new angular is ES6 and the upcoming ES7.

edited May 18 '21 at 02:54

Matthias

answered Jun 09 '16 at 07:23

E. Abrakov

2 Answers2