[jQuery] Re: function $.ajax return true/false ?

function pnrexists(a){
var html = $.ajax({
async: false,
url: '/inc/chkusr.php?q=p',
type: 'POST',
dataType: 'html',
data: {'pnr': a},
timeout: 2000,
}).responseText;
if(html==1){
return true;
}else{
return false;
}
}

works ;)
Thanks for the help anyway!
it may not look so nice... But it works... Any better idea?

On Feb 27, 8:04 pm, James <james.gp....@gmail.com> wrote:
> Oops, I just read that you did try 'false'..
>
> On Feb 27, 9:03 am, James <james.gp....@gmail.com> wrote:
>
> > I'm sorry, I mean 'async: false'! Try that. :)
>
> > On Feb 27, 8:54 am, Gelegrodan <GeleGro...@gmail.com> wrote:
>
> > > Hello!
> > > Thanks you your answer, but it seems like it didnt help!
>
> > > function pnrexists(a){
> > >         $.ajax({
> > >                 async: true,
> > >                 url: '/inc/chkusr.php?q=p',
> > >                 type: 'POST',
> > >                 dataType: 'html',
> > >                 data: {'pnr': a},
> > >                 timeout: 2000,
> > >                 success: function(data) {
> > >                         if(data==1){
> > >                                 alert('true');
> > >                                 return true;
> > >                         }else{
> > >                                 return false;
> > >                         }
> > >                 }
> > >         });
>
> > > }
>
> > > $.validator.addMethod("pnrcheck", function(ph, element) {
> > >         if(persnr(ph)) {
> > >         alert('1');
> > >                 if(pnrexists(ph)) {
> > >                 alert('2');
> > > I see:
> > > alert 1 and alert true
>
> > > setting the async to false dont seems to help either!
> > > Any idea?
>
> > > On Feb 27, 7:39 pm, James <james.gp....@gmail.com> wrote:
>
> > > > The issue here is that AJAX is asynchronous. The the moment you're
> > > > checking pnrexists(ph), it'll execute the AJAX but nothing is returned
> > > > "at that moment" (which means it is not-true, so the if-statement
> > > > fails). Then a few milliseconds later, your AJAX response has
> > > > returned, but the code is way passed the if-statement by then already.
> > > > Try adding the 'async: true' to the $.ajax() option. This tells the
> > > > rest if your code to wait for the AJAX response before continuing.
>
> > > > On Feb 27, 8:00 am, Gelegrodan <GeleGro...@gmail.com> wrote:
>
> > > > > Hello
> > > > > I have the following code:
>
> > > > > function pnrexists(a){
> > > > >         $.ajax({
> > > > >                 url: '/inc/chkusr.php?q=p',
> > > > >                 type: 'POST',
> > > > >                 dataType: 'html',
> > > > >                 data: {'pnr': a},
> > > > >                 timeout: 2000,
> > > > >                 success: function(data) {
> > > > >                         if(data==1){
> > > > >                                 alert('true');
> > > > >                                 return true;
> > > > >                         }else{
> > > > >                                 alert('false');
> > > > >                                 return false;
> > > > >                         }
> > > > >                 },
> > > > >         });
>
> > > > > }
>
> > > > > the code above is triggered by:
>
> > > > > $.validator.addMethod("pnrcheck", function(ph, element) {
> > > > >         alert('1');
> > > > >         if(persnr(ph)) {
> > > > >                 alert('2');
> > > > >                 if(pnrexists(ph)) {
> > > > >                 alert('3');
> > > > >  the code continues..but noting to show...
>
> > > > > The problem is: I see:
> > > > > alert 1
> > > > > alert 2
> > > > > alert true
> > > > > but NOT alert 3?? Why?