On Sep 8, 2009, at 9:42 AM, KeeganWatkins wrote:
> @Oleg -
>
>>> Your way is not shorter as this one
>
> It isn't simply about brevity, although that is a concern. My main
> goal is to increase the use cases that these methods are able to
> account for. In your "as-basic-as-possible" example, it's true that
> simply chaining calls to the shorthand methods, i.e. click(),
> mouseover
> (), mouseout() could save a few lines, but ultimately that is trivial.
> Also, how would you unbind those handlers if you needed to ("I don't
> ever need to" is not really a good enough answer) ? By passing
> anonymous functions to bind(), you've lost your ability to clean up
> after yourself. I don't really want to get into a debate over personal
> coding style, but the fact remains that there are going to be
> situations where a group of bound handlers needs to be unbound. So,
> for your example, we have to change the actual handlers to named
> function references. Then, assuming we have named functions to work
> with, your "shorter" answer requires that we again chain the calls to
> unbind() (one each per handler). So, your "shorter" solution isn't
> shorter unless you give up using unbind(), which is not an option in
> my case.
Hi Keegan,
Without getting into the merits of your proposal as a whole, I think
you're mistaken about the inability to "clean up after yourself" when
passing anonymous functions to bind. This is what namespaced events
are for. If you change Oleg's example just a bit ...
$("#myID").bind('click.mynamespace', function(e) {
// handle click
})
.bind('mouseover.mynamespace', function(e) {
// handle mouseover
})
.bind('mouseout.mynamespace', function(e) {
// handle mouseout
});
... you can unbind this click handler without unbinding other click
handlers by doing this:
$("#myID").unbind('click.mynamespace');
You can also unbind all of those handlers that have the .mynamespace
namespace by doing this:
$("#myID").unbind('.mynamespace');
Even without the namespaces, we don't need to "chain the calls to
unbind()," since both bind and unbind can take space-delimited events
as the first argument:
$("#myID").unbind('click mouseover mouseout');
--Karl
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