Hacker News Reader

Using promises is basically no different than using async functions, and definitely doesn't "uncolor" your functions.

Any function that calls another that returns a Promise will have to return a Promise to represent completion correctly. That's the color.

View on HN

> Any function that calls another that returns a Promise will have to return a Promise to represent completion correctly

No, it doesn't, closures let you update values in the wcope of the parent in .then() callbacks and then you can loop in the function and wait for completion and return a non-Promise value.

This is not true. If your sync function loops until the value is set, then the Promise will never resolve, since it never yields to the event loop.

Reply on news.ycombinator.com