Prevent double submission of forms in jQuery

Question

I have a form that takes a little while for the server to process. I need to ensure that the user waits and does not attempt to resubmit the form by clicking the button agai

Answer 1

I ended up using ideas from this post to come up with a solution that is pretty similar to AtZako's version.

 jQuery.fn.preventDoubleSubmission = function() {

    var last_clicked, time_since_clicked;

    $(this).bind('submit', function(event){

    if(last_clicked) 
      time_since_clicked = event.timeStamp - last_clicked;

    last_clicked = event.timeStamp;

    if(time_since_clicked < 2000)
      return false;

    return true;
  });   
};

Using like this:

$('#my-form').preventDoubleSubmission();

I found that the solutions that didn't include some kind of timeout but just disabled submission or disabled form elements caused problems because once the lock-out is triggered you can't submit again until you refresh the page. That causes some problems for me when doing ajax stuff.

This can probably be prettied up a bit as its not that fancy.