the question is: how to check if a function is empty or have any code
On Feb 1, 5:18 pm, Richard Quadling <rquadl...@googlemail.com> wrote:
> On 1 February 2010 13:02, buda <www...@pochta.ru> wrote:
>
>
>
>
>
> > var Obj = {};
> > Obj.meth = Prototype.emptyFunction;
>
> > if (Obj.meth !== Prototype.emptyFunction) {
> > alert('Not equal');
> > }
>
> > why alert show everytime?
>
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>
> Why?
>
> The main advantage of the emptyFunction is that you can always call it
> without having to do a null/undefined test first.
>
> If you want to know if it has been assigned something, then don't
> assign the emptyFunction, leave it as null and then test if it is
> null.
>
> --
> -----
> Richard Quadling
> "Standing on the shoulders of some very clever giants!"
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> - Show quoted text -
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