khs4473 at gmail.com
Wed Nov 14 10:46:33 PST 2012
I personally think Scala made a good choice, because most of the time all
we are concerned with is the future. And we can talk about futures
independently from invoking the promise analogy. I think the promise
analogy is great, but in my opinion it can be a little bit tricky for
people to pick up.
If I were teaching this stuff, I wouldn't start with promises. I would
start with futures and show how they are like callbacks++. That's what
most users are looking for to begin with anyway. Only after we'd mastered
futures would we talk about promises and their three states and remote
objects and so-on.
Also, something like a DOMFuture can be spec'd independently from any
particular (and more fully featured) promise spec.
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