Found something: it seems in jQuery 1.6 they have introduced something which
corresponds
more closely to Twisted Deferreds callback/errback chains:
// prints 23
sess.call("square", 23).pipe(function(res) {
return sess.call("sqrt", res);
}).pipe(console.log);
http://api.jquery.com/deferred.pipe/
I am still wondering why they called the other stuff "then()" when it's not
then, but "also()"
and "pipe()" is the real <then> ;)
And now they have then() _and_ pipe().
This is all asking for confusion. - Whatever.
Tobias
On 25.08.11 00:52, "Tobias Oberstein" <[email protected]> wrote:
Ok. This is most unpleasant. In particular since my options then are:
1) write my own, sane (Twisted like, which I think is the sane way) JS
deferred, not use jQuery/CommonJS (which everyone else does)
2) open the door for users running into issues when they do both Twisted &
JS/jQuery and don't understand the subtle difference
bad.
of course not a Twisted mailing list topic anymore .. I'll go to jQuery list.
Thanks!
Tobias
On 25.08.11 00:36, "Allen Short" <[email protected]> wrote:
No, this is something jQuery and CommonJS got wrong; callbacks don't chain in
their implementation.
Firing a jQuery promise invokes each callback in order with the same argument.
Firing a Deferred in Twisted invokes the first callback then passes its return
value as the arg to the next callback, and so forth.
_______________________________________________
Twisted-Python mailing list
[email protected]
http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
