On Saturday 26 September 2009 04:04:22 kangax wrote:
> On Sep 24, 11:20 pm, Andrew Dupont <goo...@andrewdupont.net> wrote:
> > Unless anyone has serious objections, or has a better idea, I'm going
> > to add these as aliases of `Prototype.emptyFunction` and
> > `Prototype.K`, respectively. They belong better there, since in theory
> > the `Prototype` namespace is for internal stuff, not for stuff that
> > has value to end-user developers.
>
> It sure makes more sense to have those on `Function`. I kind of hate
> that we're putting yet another (completely made-up) method on yet
> another built-in native, but it looks like there's not much that can
> be done about it at this point anyway.
>
> As far as naming, I would probably go with `Function.empty` and
> `Function.identity` (`Function.K` looks neat but it would then make
> sense to uppercase `EMPTY` too, and I like lowercase version more).
>
> Now that we're on this subject, we can also add so often useful
> `Function.false` (i.e. `function(){ return false; }`). I use it all
> the time for things like preventing events -
> `someElement.onselectstart = Prototype.falseFunction;`, etc.
>
> Is anyone else using something like that?
I have Function.alwaysReturn( val );
So, I'd use Function.alwaysReturn( false ) in that case.
Is good for anywhere a function is expected but you want to insert a value.
Eg, Function.alwaysReturn( 4 );
Function.alwaysReturn =
function ( val ){
return (function(){return val});
};
--
Jim
my wiki ajaxification thing: http://wikizzle.org
my blog: http://jimhigson.blogspot.com/
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Prototype: Core" group.
To post to this group, send email to prototype-core@googlegroups.com
To unsubscribe from this group, send email to
prototype-core-unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/prototype-core?hl=en
-~----------~----~----~----~------~----~------~--~---
