javascript - ajax closest is not affected in ruby on rails -

hello newbie in ruby on rails.and try ajax in demo website.delete performed have refresh each time.

view/shared/_feed_item.html.haml

%li{id: feed_item.id} = image_tag current_user.image_url(:small_thumb).to_s %span.user %span.destination %b source: = feed_item.source %span.destination %b destination: = feed_item.destination %span.destination %b date: = feed_item.date %span.timestamp %b time: = feed_item.time %span.content %b comment: = feed_item.content %span.timestamp - if current_user == feed_item.user = link_to "delete", feed_item ,method: :delete, data: { confirm: "you sure?" }, title:  "delete", remote: true, class: "delete_post" 

view/requests/delete.js.haml

$(document).ready(function(){   $(function(){     $('.delete_post').bind('ajax:success',function() {       $(this).closest('li').fadeout();     });   }); }); 

controller/requests_controller.rb

def destroy  @request.destroy  respond_to |format|    format.html { redirect_to root_url, notice: "post deleted" }    format.js { render nothing: true}  end end 

raw html link

link

thanks in advance.

the reason why jquery not working. problem turbolinks. $(document).ready(function() not working turbolinks. more description