Generally map() functions work on sequences (values indexed by
numbers).
On Oct 30, 1:08 am, gMinuses <gminu...@gmail.com> wrote:
> From it's name, I think It should be general, and should be working on
> all kinds of arrays. The object I'm talking about here is actually a
> hash, which is a kind of array, and I figure it'd be appropriate to
> let $.map() also work for it.
>
> On Oct 30, 3:20 am, Robert Katić <robert.ka...@gmail.com> wrote:
>
> > Be warned that $.map() is designed to work on a sequence of DOM
> > elements. Although it would work with other values too, callback
> > results are not handled as you probably expect: null and undefined
> > values are discarded and arrays are merged to the final array.
>
> > In your case an classic for(key in obj) would be more appropriate, I
> > think.
>
> > On Oct 29, 9:56 am, gMinuses <gminu...@gmail.com> wrote:
>
> > > I'm not sure if it's necessary, but I feel It'd be nice that we can
> > > pass an object to $.map(), so that jquery will iterate over it's
> > > properties and modifies values by calling the callback function:
>
> > > var obj = { a: function() { alert(1) }, b: function() { alert(2) } };
> > > $.map( obj, function( value, key ) {
> > > return function() {
> > > // Call old function
> > > value();
>
> > > // Do something else;
> > > };
>
> > > })
>
> > > If the idea is redundant because of my lack of knowledge, please let
> > > me know how to do it natively, thanks. ( If you are going to suggest "
> > > for( in ) ", I think it doesn't have the benefit of scoping )
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