EcmaScript Proposal - Promised functions

[Tab Atkins Jr.]

On Thu, Apr 12, 2018 at 9:07 AM, Luiz Felipe Frazão Gonçalves
<luizfelipefrazaogoncalves at gmail.com> wrote:
> One new proposal for EcmaScript.
>
> Promised Functions
>
> Like async/await, the promised functions would be preceded by a keyword. In
> the case, promised, it would change the default behavior of the function,
> making it behave as a promise.
>
> I will use as an example a classic sleep function:
>
> function sleep(forHowLong) {
>   return new Promise((resolve, reject) => {
>     setTimeout(function() {
>       resolve();
>
>       /**
>        * For reject:
>        *
>        * reject(Error('Some error'));
>        */
>     }, forHowLong);
>   });
> }
>
> I think to avoid the huge amount of callbacks, there should be a syntax
> similar to this:

Some of these callbacks aren't necessary:

function sleep(forHowLong) {
  return new Promise(resolve=>setTimeout(resolve, forHowLong));
}

Tho even if you do use all the same callbacks, just formatting it
properly helps:

function sleep(forHowLong) {
  return new Promise(resolve=>setTimeout(_=>resolve(), forHowLong));
}

~TJ