The $.getJSON callback function is not called at the time you make the
$.getJSON call. It's called asynchronously, much later, after the data has
been downloaded. The return value from the callback is discarded - there's
no one to return it to.
Did you want to take two different actions depending on the value of
res.registed? Then do it right there in the callback. For example:
$.getJSON(url, function(res){
if(res.registed){
doOneThing();
}else{
doAnotherThing();
}
});
-Mike
> -----Original Message-----
> From: jquery-en@googlegroups.com
> [mailto:[EMAIL PROTECTED] On Behalf Of Freshow
> Sent: Thursday, November 13, 2008 7:58 AM
> To: jQuery (English)
> Subject: [jQuery] How can I return some value in jquery's
> callback function?
>
>
> it didn't work when I 'return true' or 'return false', is
> there some way to get it?
> ==============================================================
> var url='http://localhost/coudou/check/register.php?email=' + str;
> $.getJSON(url, function(res){
> if(res.registed){
> return true; // not work
> }else{
> return false; // not work
> }
> });
>
