Ok, yes you can check it out at
http://www.sonicconnection.se/se/index.php?site=_misc/register
It´s in swedish but its the first field that uses the code to check if
the username already exists, it makes a call to a php script and the
response is equal to the username if it exists in the database, and if
it does'nt exist it returns nothing.
I put the parts of the script thats for the registration at the top
and commented it. the script file is sc_functions.js
Its a lot of repetetive code int there that i havent made into
fuctions yet so you know haha :)
Thanks again :)
George
On 14 Dec, 18:15, Michael Geary <m...@mg.to> wrote:
> Looks like we have two threads going on the same topic. :-)
>
> To give you a real code example, I'd need to see the code that makes use of
> that 'result' variable you're setting. Where is that code and what does it
> look like?
>
> The bottom line is simple: whatever the code is that uses the 'result'
> variable, that code needs to be made into a function, and you need to call
> that function in the ajax success callback. Or, that function can *be* the
> success callback.
>
> You can't just set a variable in an asynchronous callback and expect other
> code somewhere else on the page to somehow "know" when your variable is
> ready for use.
>
> It's not a question of "how far deep in nested functions can you return a
> value". Any nested function can return a value; it doesn't matter how far
> deeply your functions are nested. But that return value goes only to
> *whoever called that function*. In the case of a $.ajax callback, the return
> value is being passed back into the $.ajax code, which probably ignores the
> value completely.
>
> The real issue is *when* the code is run.
>
> Can you post a URL to a complete test page? That would make it a lot easier
> to suggest the right way to write your code.
>
> -Mike
>
> On Mon, Dec 14, 2009 at 5:48 AM, Jojje <jojjsus_chr...@hotmail.com> wrote:
> > Hi! Yeah i got that tip before but i'm not sure i understand this.
> > Could you perhaps give me an example with the code below :)
>
> > regards
>
> > George
>
> > On 14 Dec, 14:27, Rick van Hoeij <rickvho...@gmail.com> wrote:
> > > because of the async of javascript I normally use callback functions
> > > to do the value passing. So instead of return true or return false in
> > > a ajax function, it's better to call a function with the true or false
> > > as a parameter.
>
> > > Just my two cents ;)
>
> > > On 12 dec, 20:24, Jojje <jojjsus_chr...@hotmail.com> wrote:
>
> > > > How deep in the scope can you go in nested functions and still return
> > > > a value? For example:
>
> > > > $.validator.addMethod('userCheck', function (value) {
> > > > $.ajax({
> > > > type: "POST",
> > > > url: "_scripts/send_message.php",
> > > > data: "action=checkuser& username=" + value,
> > > > success: function(msg) {
> > > > if (msg) {
> > > > return false;
> > > > }
> > > > else {
> > > > return true;
> > > > }
> > > > }
> > > > });
>
> > > > },"");
>
> > > > Why is´nt this working?
>
> > > > If i do this:
>
> > > > //Global
> > > > var result;
>
> > > > $.validator.addMethod('userCheck', function (value) {
> > > > $.ajax({
> > > > type: "POST",
> > > > url: "_scripts/send_message.php",
> > > > data: "action=checkuser& username=" + value,
> > > > success: function(msg) {
> > > > if (msg) {
> > > > result = false;
> > > > }
> > > > else {
> > > > result = true;
> > > > }
> > > > }
> > > > });
> > > > return result;
>
> > > > },"");
>
> > > > i get the value back but it does not work properly, It gets the value
> > > > from the textfield but on keyup it's always one letter short... so i
> > > > have to type one more letter to get the right value. I´m stuck on this
> > > > so any help would be greatly appreciated! :)
>
> > > > Thanks in advance
>
> > > > George
