I already did it:
http://dev.jquery.com/~john/plugins/callback/

my other proposal:
http://dev.jquery.com/~john/plugins/callback/old.html

I'm working on a third proposal now.

A nice thing about $.callback is that it's very simple (perhaps too
simple - no support for chaining).

--John



On Sat, Oct 4, 2008 at 7:09 PM, Ariel Flesler <[EMAIL PROTECTED]> wrote:
> Why don't we make a plugin out of this ? there's no so much of a need for
> this on the core.
> Then, if it seems successful, we can add it (just like offset/dimensions).
>
> On Sat, Oct 4, 2008 at 4:26 PM, Brandon Aaron <[EMAIL PROTECTED]>
> wrote:
>>
>> Although it seems like we are getting further off-topic... I often pass
>> around function references as strings. For example this is a common pattern
>> that I use.
>> $('div')[ test() ? 'doSomething' : 'doSomethingElse' ]();
>> Using something like $.callback is very explicit as to its purpose. After
>> all callback is exactly what we call it in the docs, etc. Granted I don't
>> mind using anonymous callbacks, if I need the code to be cleaner, I'll use
>> named functions to be even more explicit. But of the other proposals I like
>> $.callback the best.
>> --
>> Brandon Aaron
>> On Sat, Oct 4, 2008 at 9:56 AM, Cloudream <[EMAIL PROTECTED]> wrote:
>>>
>>> I do not like passing a jQuery method name as a string to one special
>>> method.
>>>
>>> A new (and a little strange) usage to jQuery.
>>>
>>> On Oct 4, 5:06 am, "Brandon Aaron" <[EMAIL PROTECTED]> wrote:
>>> > I'd prefer this as well.
>>> >
>>> > I think this also helps a few common cases of var self = $(this);
>>> > --
>>> > Brandon Aaron
>>> >
>>> > On Fri, Oct 3, 2008 at 4:01 PM, Yehuda Katz <[EMAIL PROTECTED]> wrote:
>>> > > $.callback("addClass", "hello") is ok with me.
>>> > > -- Yehuda
>>> >
>>> > > On Fri, Oct 3, 2008 at 1:58 PM, Ariel Flesler <[EMAIL PROTECTED]>
>>> > > wrote:
>>> >
>>> > >> Yeah, well. We could provide an interface for registering these
>>> > >> methods
>>> > >> for those plugins that are interested. Still, someone could expect a
>>> > >> method
>>> > >> to be registered when it's not.
>>> >
>>> > >> The other option is to pass the method name as first argument, works
>>> > >> around this but it loses the I-call-the-analog-method thing.
>>> >
>>> > >> On Fri, Oct 3, 2008 at 5:51 PM, Yehuda Katz <[EMAIL PROTECTED]>
>>> > >> wrote:
>>> >
>>> > >>> The only tricky thing here is that because JS has no method_missing
>>> > >>> or
>>> > >>> cross-browse __noSuchMethod__, we'd be forced to explicitly write
>>> > >>> all the
>>> > >>> proxies, which could become messy when they work for core methods,
>>> > >>> but not
>>> > >>> all plugins.
>>> > >>> Or maybe I'm just being a nervous nelly.
>>> >
>>> > >>> -- Yehuda
>>> >
>>> > >>> On Fri, Oct 3, 2008 at 1:46 PM, Ariel Flesler
>>> > >>> <[EMAIL PROTECTED]>wrote:
>>> >
>>> > >>>> Note that John's code doesn't do actual currying, but partial
>>> > >>>> evaluation.
>>> >
>>> > >>>>http://en.wikipedia.org/wiki/Partial_evaluation
>>> >
>>> > >>>> Currying is a complex concept in comparison to the latter.
>>> > >>>> Anyway, you can change the name if you want, the idea is simple,
>>> > >>>> create
>>> > >>>> a closure with fixed parameters.
>>> > >>>> We can name it callback (though it's long)
>>> >
>>> > >>>> jQuery("#test").hide("slow", jQuery.callback.show("slow") );
>>> >
>>> > >>>> Not to hard to understand IMO, and no CS involved :)
>>> >
>>> > >>>> On Fri, Oct 3, 2008 at 5:41 PM, Yehuda Katz <[EMAIL PROTECTED]>
>>> > >>>> wrote:
>>> >
>>> > >>>>> As in Computer Science.
>>> > >>>>> Using a currying function requires people new to jQuery to go
>>> > >>>>> look it
>>> > >>>>> up, where they'll encounter:
>>> >
>>> > >>>>>http://en.wikipedia.org/wiki/Curry
>>> >
>>> > >>>>> and probably eventually:
>>> >
>>> > >>>>>http://en.wikipedia.org/wiki/Currying
>>> >
>>> > >>>>> "Given a function *f* of type [image: f \colon (X \times Y) \to
>>> > >>>>> Z],
>>> > >>>>> then *currying* it makes a function [image: \mbox{curry}(f)
>>> > >>>>> \colon X
>>> > >>>>> \to (Y \to Z)]. That is, curry(*f*) takes an argument of type *X*
>>> > >>>>> and
>>> > >>>>> returns a function of type [image: Y \to Z].*Uncurrying* is the
>>> > >>>>> reverse transformation."
>>> >
>>> > >>>>> Prototype added features like this to 1.6, and while they're
>>> > >>>>> interesting and useful, they make it hard for people coming to a
>>> > >>>>> codebase
>>> > >>>>> (especially people new to the framework) to understand what's
>>> > >>>>> happening in
>>> > >>>>> the code.
>>> >
>>> > >>>>> On Fri, Oct 3, 2008 at 1:34 PM, Ariel Flesler
>>> > >>>>> <[EMAIL PROTECTED]>wrote:
>>> >
>>> > >>>>>> CS as in Counter Strike ? :D
>>> > >>>>>> Heh, no really... what is CS, forgive my ignorance :P
>>> >
>>> > >>>>>> On Fri, Oct 3, 2008 at 5:30 PM, Yehuda Katz <[EMAIL PROTECTED]>
>>> > >>>>>> wrote:
>>> >
>>> > >>>>>>> Any feature that requires knowledge of CS is a no-go in my book
>>> > >>>>>>> :P
>>> > >>>>>>> -- Yehuda
>>> >
>>> > >>>>>>> On Fri, Oct 3, 2008 at 1:27 PM, Ariel Flesler
>>> > >>>>>>> <[EMAIL PROTECTED]>wrote:
>>> >
>>> > >>>>>>>> Eh, nothing, got it wrong.
>>> >
>>> > >>>>>>>> We could just save all these methods on a special object.
>>> >
>>> > >>>>>>>> jQuery("#test").hide("slow", jQuery.curry.show("slow") );
>>> >
>>> > >>>>>>>> The name could be changed of course.
>>> >
>>> > >>>>>>>> Or renamed methods (probably bad option)
>>> >
>>> > >>>>>>>> jQuery("#test").hide("slow", jQuery.curriedShow("slow") );
>>> >
>>> > >>>>>>>> On Fri, Oct 3, 2008 at 5:14 PM, John Resig
>>> > >>>>>>>> <[EMAIL PROTECTED]>wrote:
>>> >
>>> > >>>>>>>>> > It is indeed. You can't expect parameters though and you
>>> > >>>>>>>>> > could
>>> > >>>>>>>>> get conflict
>>> > >>>>>>>>> > with the actual parameters sent by the caller.
>>> >
>>> > >>>>>>>>> I'm not sure what you're referring to - are you referring to
>>> > >>>>>>>>> a bug
>>> > >>>>>>>>> in
>>> > >>>>>>>>> the code? Do you have an example?
>>> >
>>> > >>>>>>>>> --John
>>> >
>>> > >>>>>>>> --
>>> > >>>>>>>> Ariel Flesler
>>> > >>>>>>>>http://flesler.blogspot.com
>>> >
>>> > >>>>>>> --
>>> > >>>>>>> Yehuda Katz
>>> > >>>>>>> Developer | Engine Yard
>>> > >>>>>>> (ph) 718.877.1325
>>> >
>>> > >>>>>> --
>>> > >>>>>> Ariel Flesler
>>> > >>>>>>http://flesler.blogspot.com
>>> >
>>> > >>>>> --
>>> > >>>>> Yehuda Katz
>>> > >>>>> Developer | Engine Yard
>>> > >>>>> (ph) 718.877.1325
>>> >
>>> > >>>> --
>>> > >>>> Ariel Flesler
>>> > >>>>http://flesler.blogspot.com
>>> >
>>> > >>> --
>>> > >>> Yehuda Katz
>>> > >>> Developer | Engine Yard
>>> > >>> (ph) 718.877.1325
>>> >
>>> > >> --
>>> > >> Ariel Flesler
>>> > >>http://flesler.blogspot.com
>>> >
>>> > > --
>>> > > Yehuda Katz
>>> > > Developer | Engine Yard
>>> > > (ph) 718.877.1325
>>>
>>
>>
>>
>
>
>
> --
> Ariel Flesler
> http://flesler.blogspot.com
>
> >
>

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