I'm trying to sort out a problem with a selector and I'm not having much
luck. I'm using firebug at the moment, but I'm not able to easily see what
the selector is picking up, if anything. The first selector is here:
$('#test :textarea').before('Current length: <span id="'+ this.id
+'_len">'+this.value.length+'</span> characters')
<form action="boo" name="test" id="test">
<textarea cols="54" rows="5" id="Desc_512"
name="Description">SPORK</textarea>
</form>
BTW the documentation doesn't show a :textarea selector in the form section
- should that be added or is that where I'm going wrong? I've tried using
$("#Desc_512") as well and I'm still getting a "this.value has no
properties" error. I'm not sure it's grabbing the right element :/
It would be insanely useful to write a doc talking about tools and code
snippets you could use to troubleshoot jquery stuff. Debugging hooks, like
being able to pause and dump data (array contents, current dom element, etc)
between chained functions would be great too. I'm a visual guy so being able
to use something like dump()
http://www.netgrow.com.au/files/javascript_dump.cfm
http://www.netgrow.com.au/files/javascript_dump.cfm or sDumper() to see an
object visually is hugely beneficial
Is there a way to just return the jquery object (so I could see it in
firebug's watch section) then pass it to another jquery function then join
them all up when I know everything works?
Here is the full function:
===================================
$(document).ready(function(){
$('#test :textarea').before('Current length: <span id="'+ this.id
+'_len">'+this.value.length+'</span> characters').keypress( function()
{
$('#'+this.id + '_len').css('color', ((this.value.length >
parseInt(this.id.split()[1]))?'red':'green')).html(this.value.length)
} );
});
<form action="boo" name="test" id="test">
<textarea cols="54" rows="5" id="Desc_512"
name="Description">SPORK</textarea>
</form>
===================================
--
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