Make never propagate about creed HOT 4 OPEN

I believe it's mostly true: never itself does consume almost no resources, and near() will tend to collapse promise chains over time.

I'd thought about detecting never and short circuiting in merge/all/settle (I think I even wrote the code for it at some point), and I still think it's a pretty cool idea. I ended up believe that real world usages of never will be few and far between, and so I didn't feel like the extra code was worth it. I could definitely be convinced that it's worthwhile, tho, if the code to do it is extremely small and simple.

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Yes, real-world usages of never seem to be rare. I wonder if anyone used it as a poor-mans cancellation, otherwise I can hardly imagine use cases.
If anything, it might have been used in the monoid instance together with concat, but that one already is short-circuited.

from creed.

I wonder if anyone used it as a poor-mans cancellation

That's an interesting question. I hadn't even considered it :) Now I'm wondering what that would look like ... any chance you've tried it?

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I mean something like

let isCancelled = false;
cancelButton.onclick = () => { isCancelled = true; … };
….then(r => {
    if (isCancelled) return never();
    …
}).then(r => {
    if (isCancelled) return never();
    …
})

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