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Discussion on: Elegant way to check if a Promise is pending

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CallMeLaNN

Checkout something like this, yeah, everything is just the Promise#then.

I never thought to check the "pending" even in a complex scenario. It is not something I wanted to grab and go, I'll come back later. Maybe you need it if you deal with coroutine or infinite loop but JS don't need that and I never done that on function generator too since there are always a way:

Since we can keep promise instance around, we can always append more or chain Promise#then to structure the flow we want.