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

Nathan's code but for jQuery Validate plugin

If you happen to use jQuery Validate plugin, they already have submit handler implemented, and in that case there is no reason to implement more than one. The code:

jQuery.validator.setDefaults({
  submitHandler: function(form){
    // Prevent double submit
    if($(form).data('submitted')===true){
      // Previously submitted - don't submit again
      return false;
    } else {
      // Mark form as 'submitted' so that the next submit can be ignored
      $(form).data('submitted', true);
      return true;
    }
  }
});

You can easily expand it within the } else {-block to disable inputs and/or submit button.

Cheers