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

Yeah that seems to work, if i have async: false ;)
Thanks!

On Feb 27, 8:06 pm, James <james.gp....@gmail.com> wrote:
> I think it's a function scope thing.
> How about something like:
>
> function pnrexists(a){
> var returnVal = false;
> $.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');
> returnVal = true;
> }else{
> returnVal = false;
> }
> }
> });
> return returnVal;
>
> }
>
> On Feb 27, 9:04 am, 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?