Hi,
Yes, you can set/modify global variables in any function in
JavaScript. Did you try it and have a problem, or...?
I should note that your code above won't work as you expect it to,
because the request is asynchronous. So the code checking whether foo
is 1 runs immediately, before the request has a chance to finish.
Once the request finishes and the onComplete handler fires, though,
foo will be set to 1. (You can make the request synchronous, but it's
not a great idea; better to put your logic in the various completion
handlers.)
Hope this helps,
--
T.J. Crowder
tj / crowder software / com
On Jun 30, 9:51 am, ljundie <[EMAIL PROTECTED]> wrote:
> hi!
>
> i still dont manage to do everything i need with prototype callbacks.
> one thing i'd like to get is to be able to change a global value
> within a callback, is it possible?
>
> an example better than thounsand words ;)
> the code would be like:
>
> <script type="text/javascript">
>
> var foo=0;
>
> function loadRSS() {
> var url = "feeds.xhtml";
> var myAjax = new Ajax.Request( url, {
>
> method: 'get',
>
> parameters: '',
>
> onComplete: processRSS
>
> });
> }
>
> function processRSS(xmlHttpRequest, responseHeader) {
> foo=1;
> }
>
> if (foo==1){
> alert ('yeah!');
> }
>
> </script>
>
> many thanks in advance for every help
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "Ruby
on Rails: Spinoffs" group.
To post to this group, send email to rubyonrails-spinoffs@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/rubyonrails-spinoffs?hl=en
-~----------~----~----~----~------~----~------~--~---
