2011/10/12 T.J. Crowder <t...@crowdersoftware.com>

> Hi,
>
> On Oct 11, 3:13 pm, "Miguel Beltran R." <yourpa...@gmail.com> wrote:
> > Using prototype 1.7 I try to figure what is better, the new ON method or
> > OBSERVE method but the only thing I found is that ON is better if you
> wish
> > use an CSS selector and/or stopObserve
> >
> > am I correct? or observe is going to be deprecated?
>
> `on` is just like `observe` if you don't pass it a filtering selector
> (except that it's more indirect; it eventually ends up calling
> `observe` under the covers), but I can't imagine `observe` is going to
> be deprecated. Both have mechanisms for stopping event handlers. With
> `on` you stop it by calling `stop` on the `EventHandler` object it
> returns to you; with `observe` you call `stopObserving` with the same
> arguments you gave `observe` (or fewer, if you want to have a broader
> effect). The claim is that `on` is useful because you don't have to
> remember the event handler function if you need to stop it later, but
> since you have to remember the `EventHandler` instance `on` returns to
> you, I'm not seeing any net benefit in that sense. `on`'s real use is
> event delegation IMHO.
> --
> T.J. Crowder
> Independent Software Engineer
> tj / crowder software / com
> www / crowder software / com
>
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>
Thanks T.J.

I was a little worried about if ┬┤observe┬┤ could be deprecated

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