inside every object's function there is a this... it all depends on which object has the function!
inside an each function this is each element from the query inside a plug-in this is the jquery object that has an array of elements. most jq selectors keep a chain going so you have just what you started with... some change the change so you have more or less elements, but the chain continues, and you still have a jq object. Why a class instead of an ID... I used the class like I would use a local variable... since I can use prev() to find prior siblings and I just want this one special one, I can code prev('span.special") to get to the freshly added item. SURE you can do the colors with a class too! you can change the class or use the additive ability of classes to keep each part of the class separate! oops... I meant the id of the textarea.. not the form. On 1/23/07, Daemach <[EMAIL PROTECTED]> wrote: > > This or that...This or that... > http://bboyflexi.imeem.com/music/j-_J-4tV/the_choice_is_yours/ The choice is > yours! > > Is there a list of rules somewhere that define where this is that or the > reverse? Or a very detailed description of what you're left with after a > selector is run and the object is passed to the next link in the chain? > It's apparently arcane knowledge :) I see that in the keypress you have > function (e) - where does e come from and how does it get passed? > > Much thanks for taking the time - great example and I *think* I get it. The > only things I'm not understanding are why you used #test as the first > selector, since that is the form ID, and why the before statement was added > last - or does that matter? > > And why would you use a class as an identifier? it might be best to change > the class to turn the text red/green rather than changing style elements. > You might want to make the text bold too, for example. I'm not opposed to > it, just trying to understand the thought process. Would changing the class > break that selector? > > > Ⓙⓐⓚⓔ wrote: > > > > this is not this! this is that! > > > > this is very much dependent on where this is used. inside an .each(), > > this is an element. > > inside a plugin this is a jquery object (& an array of elements). > > > > the this you used is weird on one, it is probably a null jquery object > > with no elements... but I've never poked in to look! > > > > as far as debugging... everyone with firefox debugs with firebug... > > some use others... and Internet Explorer users often flip over to > > firefox for better debugging! > > > > $('#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) > > } ); > > > > might be better as > > $('#test').bind('keypress',function(e){ > > // do your dirty work with this, the textarea > > $(this).prev('span.count').html(this.value.length) > > // ... > > > > }).before('<span>Current length</span><span > > class="count">0</span><span> chars</>' > > > > > > All with no extra IDs! > > > > On 1/23/07, Daemach <[EMAIL PROTECTED]> wrote: > >> > >> 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> > >> > >> _______________________________________________ > >> jQuery mailing list > >> discuss@jquery.com > >> http://jquery.com/discuss/ > >> > > > > > > -- > > Ⓙⓐⓚⓔ - יעקב ʝǡǩȩ ᎫᎪᏦᎬ > > _______________________________________________ > > jQuery mailing list > > discuss@jquery.com > > http://jquery.com/discuss/ > > > > > > -- > View this message in context: > http://www.nabble.com/What-tools-should-I-use-to-troubleshoot-jquery-problems--%28John-Resig%2C-jquery-team%2C-other-gurus-please-share-your-tricks...%29-tf3066235.html#a8549419 > Sent from the JQuery mailing list archive at Nabble.com. > > > _______________________________________________ > jQuery mailing list > discuss@jquery.com > http://jquery.com/discuss/ > -- Ⓙⓐⓚⓔ - יעקב ʝǡǩȩ ᎫᎪᏦᎬ _______________________________________________ jQuery mailing list discuss@jquery.com http://jquery.com/discuss/