Yeah, I knew they couldn't be accessed but within one page, but that would be a big help with a totally ajax-driven app.
But, oh well.not all languages can measure up to ColdFusion. ;o) Rick From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On Behalf Of Charlie Griefer Sent: Tuesday, April 07, 2009 4:31 PM To: jquery-en@googlegroups.com Subject: [jQuery] Re: How do I access global variables for id's, etc.? session variables are stored on the server, and therefore can persist across multiple requests. JavaScript variables don't really persist beyond a single page request (AJAX notwithstanding). You can set global JS variables that any script block or function on -that- particular page request can access. But if you're looking to set a single JS variable once and dereference it across multiple page requests, that's not really how JavaScript works. It's a client side technology. On Tue, Apr 7, 2009 at 1:22 PM, Rick Faircloth <r...@whitestonemedia.com> wrote: I am using ColdFusion on the backend to set session variables when I need something I can use everywhere. I just thought there might be something similar than I could employ in Javascript. -----Original Message----- From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On Behalf Of Ricardo Sent: Tuesday, April 07, 2009 4:08 PM To: jQuery (English) Subject: [jQuery] Re: How do I access global variables for id's, etc.? If you are setting the value of the variable in a script tag in the head like that, why not just use your server-side language? The part of JS in the page is to *interact* with the DOM after it's loaded, like someone said it's not a templating language. On Apr 7, 3:52 pm, "Rick Faircloth" <r...@whitestonemedia.com> wrote: > Actually, I didn't get what I thought. > > The various sections of code without line breaks were bumping into each > > other making it look like the code was working! Sorry! > > This doesn't work: <p>gNewStoryID = <script>gNewStoryID</script></p> > > It would be nice if I could just stick a "$" on the front of a string and > have > > jQuery parse it as a variable; id="$gNewStoryID". That would be as > convenient > > as session variables in ColdFusion! Define once, user anywhere! > > No more extra functions just to change an attribute to a different value. > > Rick > > From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On > Behalf Of Rick Faircloth > Sent: Tuesday, April 07, 2009 2:18 PM > To: jquery-en@googlegroups.com > Subject: [jQuery] Re: How do I access global variables for id's, etc.? > > Surprisingly, it did work. > > I ran this code on an otherwise blank page (no doctype, etc.): > > <script type="text/javascript" src="jquery.js"></script> > > <script> > > var gNewStoryID = 2 > > </script> > > <p>This is a paragraph of text. Inside this text I want to embed the value > > of the global variable gNewStoryID, which is > <script>document.write(gNewStoryID);</script>, isn't it?</p> > > And, in FF 3, I get: > > This is a paragraph of text. Inside this text I want to embed the value > > of the global variable gNewStoryID, which is 2, isn't it? > > So, there you go! > > Concerning the alternative. yes, I realize that the typical way of doing > this "insertion" > > is to use JS to generate the values or HTML etc., and I have been doing that > with jQuery. > > I thought I would just see if there wasn't a way to "free" some of these > variables from > > the constant manipulation via JS. > > Sure seems like JS could benefit from some way to refer to the value of > these variables > > apart from simply writing more code. > > But let me know if you get that first example above to work for you. The > examples of > > how to inject HTML with the variables are fine, but they're actually more > code than > > just a line of jQuery inside a function. > > I'm just trying to figure out ways to cut down on the amount of code that > has to > > clutter up a page. > > Rick > > From: jquery-en@googlegroups.com [mailto:jquery...@googlegroups.com] On > Behalf Of Michael Geary > Sent: Tuesday, April 07, 2009 1:23 PM > To: jquery-en@googlegroups.com > Subject: [jQuery] Re: How do I access global variables for id's, etc.? > > > I'm able to output a global variable value like this: > > <p>The value of myGlobalVariable is <script>myGlobalVariable</script>.</p> > > Huh? What browser does that work in? HTML isn't a templating language, and a > <script> tag doesn't do a text replacement of the script's return value, it > just runs the script. You didn't actually get this to work, did you? > > > I would like to be able to do something as simple as > > <p id="<script>myGlobalVariable</script>">xyz</p>, > > but apparently the "" marks are a problem. > > Whoa cowboy, that's even farther from anything you could ever actually do: > you're trying to nest an HTML tag inside the attribute of another tag. > > Instead, the way you do stuff like this is to write JavaScript code that > generates the HTML or DOM elements. > > For example, during page loading (not in a document ready function), you can > use document.write(): > > <script type="text/javascript"> > // myGlobalVariable has been previously defined > document.write( '<p id="', myGlobalVariable, '">xyz</p>' ); > </script> > > That works with local variables as well, of course. > > <script type="text/javascript"> > (function() { > var foo = someFunction(); > document.write( '<p id="', foo, '">xyz</p>' ); > })(); > </script> > > Or, in jQuery you can do things like this: > > <script type="text/javascript"> > $(function() { > $('#someContainer').html( > $('<p>xyz</p>').attr({ id: myGlobalVariable }) > ); > }); > </script> > > Alternatively, there are several JavaScript-based template systems, from the > very simple to the rather complex. They may let you code in a style closer > to what you're hoping to use. > > -Mike > > _____ > > From: Rick Faircloth > > I would like to be able to do something as simple as > > <p id="<script>myGlobalVariable</script>">xyz</p>, > > but apparently the "" marks are a problem. > > I'm able to output a global variable value like this: > > <p>The value of myGlobalVariable is <script>myGlobalVariable</script>.</p> > > Is there some way to use global variable values with an id attribute? > > Thanks, > > Rick > > ---------------------------------------------------------------------------- > ----------------------------------------------------------- > > "It has been my experience that most bad government is the result of too > much government." - Thomas Jefferson -- I have failed as much as I have succeeded. But I love my life. I love my wife. And I wish you my kind of success.
