Meteor Promise.await vs native await

bug249286 · February 17, 2020, 4:25am

The difference between What are the different uses of Promise.await and native await? And different performance or not?

Thank you.

jkuester · February 17, 2020, 8:00am

As far as I can see is Promise.await a polyfill for await:

meteor/meteor/blob/devel/packages/promise/README.md

# promise [![Build Status](https://travis-ci.org/meteor/promise.svg)](https://travis-ci.org/meteor/promise)
[Source code of released version](https://github.com/meteor/meteor/tree/master/packages/promise) | [Source code of development version](https://github.com/meteor/meteor/tree/devel/packages/promise)
***

ECMAScript 2015 Promise polyfill with Fiber support

The static methods `Promise.async` and `Promise.await` implement the
relaxed `async` and `await` functions proposed in this talk: [Why Fibers
Make Sense For Meteor](http://benjamn.github.io/goto2015-talk).

robfallows · February 17, 2020, 10:48am

Promise.await is only available on the server and uses Fibers to suspend execution until the Promise is resolved. It’s a convenient way of updating server-side code to resolve a Promise without re-writing large sections in standard async / await syntax. In short, on the server, you don’t need to declare an async scope to use Promise.await.

bug249286 · February 17, 2020, 3:31pm

@robfallows @jkuester Thank you.