Re: Using Event.observe -- Closure issue?
Scott Sauyet <[email protected]> Wed, 07 Feb 2007 15:37:32 -0500
| Newsgroups | gmane.comp.web.dom.wdf |
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| Message-ID | <[email protected]> |
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Adam Griffis wrote:
> I can't claim that recursive layout to myself... if you look at the
> $(element) function in the prototype library (http://prototypejs.org
> <http://prototypejs.org>) it
> is laid out the same way. I just didn't understand why they had done it
> that way, due to my lack of understanding of closures! Once you guys
> helped me understand closures a bit better, I realized I could do my
> function the same way as the $() function.
I use Prototype a great deal, but haven't spent too much time on the
internals. In any case, it's a nice way of dealing with this situation.
Honestly, for all sorts of loop conditions it's a nice technique.
> Using a simple HTML solution might have made sense had I realized that
> "title" worked the same way as "alt" in the first place, but at this point
> I had already written the JS code. :-) Not only that, but this method
> allows me to style the tooltip div however I want. For instance, I could
> change the font size / color / background to show a more critical message
> on hover. Another _small_ gripe I have about using alt and title is the
> amount of time it takes for the tooltip to show up once you are hovering
> over the element.
Most of the more recent tooltip libraries I've used start with the title
and use Javascript/CSS so they can have more control over the behavior
and formatting. The title makes more sense in terms of HTML semantics
and has a nicer degradation.
-- Scott Sauyet
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<p>Adam Griffis wrote:<br>
> I can't claim that recursive layout to myself... if you look at the<br>
> $(element) function in the prototype library (<a href="http://prototypejs.org">http://prototypejs.<wbr>org</a> <br>
> <<a href="http://prototypejs.org">http://prototypejs.<wbr>org</a>>) it<br>
> is laid out the same way. I just didn't understand why they had done it<br>
> that way, due to my lack of understanding of closures! Once you guys<br>
> helped me understand closures a bit better, I realized I could do my<br>
> function the same way as the $() function.<br>
<br>
I use Prototype a great deal, but haven't spent too much time on the <br>
internals. In any case, it's a nice way of dealing with this situation. <br>
Honestly, for all sorts of loop conditions it's a nice technique.<br>
<br>
> Using a simple HTML solution might have made sense had I realized that<br>
> "title" worked the same way as "alt" in the first place, but at this point<br>
> I had already written the JS code. :-) Not only that, but this method<br>
> allows me to style the tooltip div however I want. For instance, I could<br>
> change the font size / color / background to show a more critical message<br>
> on hover. Another _small_ gripe I have about using alt and title is the<br>
> amount of time it takes for the tooltip to show up once you are hovering<br>
> over the element.<br>
<br>
Most of the more recent tooltip libraries I've used start with the title <br>
and use Javascript/CSS so they can have more control over the behavior <br>
and formatting. The title makes more sense in terms of HTML semantics <br>
and has a nicer degradation.<br>
<br>
-- Scott Sauyet<br>
<br>
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