Rails Jquery中的callback(callbackinrails Jquery(ujs))

如下： （refer to : http://stackoverflow.com/questions/13224482/rails-confirm-modifier-callback )

 <%= coffee_script_tag do %>
 $(document).on 'confirm:complete', (e, answer) ->
   if(answer && $(e.target).hasClass('push_button') )
     $(e.target).hide()
     $(e.target).parent().prepend("推送中... ")
 <% end %>