Hi, William! :-)
Can I make a code suggestion?:
jQuery.isEmpty = function(mixedVar) {
return (!mixedVar || !mixedVar.length || !mixedVar == '0');
};
I can't remember, though, if a String "0" evaluates to false, in a Boolean
or conditional test, like PHP does... if it does, you can leave out the
third test from the method return statement.
Diogo
On Sat, Nov 29, 2008 at 8:21 PM, John Resig <[EMAIL PROTECTED]> wrote:
>
> We have an isArray method in the latest nightlies (jQuery.isArray) but
> unless we have a need for it in core we're not likely to add a method
> like isEmpty.
>
> This would make for a perfectly acceptable plugin, though - thanks for
> the suggestion!
>
> --John
>
>
>
> On Sat, Nov 29, 2008 at 10:18 AM, William Chang <[EMAIL PROTECTED]>
> wrote:
> >
> > I would like to make a request (or proposal) to be included in the
> > next version of jQuery: isEmpty() method to return true or false for
> > condition statements. I'm not sure jQuery have something like this,
> > but let me know if it exist or does not exist? Thanks!
> >
> > By the way, this is for jQuery Utilities: Object/Test Operation
> >
> > Here is my code I use to do isEmpty in JavaScript. Someone can make it
> > better please for jQuery:
> >
> > // Is empty.
> > function isEmpty(mixed_var) {return (mixed_var == undefined ||
> > mixed_var === '' || mixed_var === 0 || mixed_var === '0' || mixed_var
> > === null || mixed_var === false || (isArray(mixed_var) &&
> > mixed_var.length === 0));}
> > // Is array.
> > function isArray(mixed_var) {return (mixed_var instanceof Array);}
> >
> > >
> >
>
> >
>
--
Diogo Baeder
http://www.diogobaeder.com.br
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