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']);

Picked

EcmaScript 6 Promise – D

Does the native promise have a when equivalent? – Picked

Promise.resolve(['TestResponse']) should do the trick – Wedged

Answer 1

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

See also https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise or http://learnangular2.com/es6/promises

Dys

What if we're stuck at using ES5? What should we do? – Monition

IMHO stay with Angular1.x – Proline

That's of course an option. But in slow migration scenarios a solution can help. – Monition

Actually I don't know about ES5 with Angular2. – Proline

Answer 2

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

Georgettageorgette