wordpress - How to hide bootstrap drop down menu on second click in my nav bar? -

i using bootstrap in wordpress custom theme navigation menu not hide after click second time. how resolve problem using bootstrap 3. m using walker drop down menu here code

<?php // loading wordpress custom menu  wp_nav_menu( array(     'container_class' => 'nav nav-pills navbar-collapse',     'menu_class'      => 'nav navbar-nav',     'menu_id'         => 'main-menu',     'walker'  => new cwd_wp_bootstrapwp_walker_nav_menu()  ) ); ?> 

why dont use jquery hide , show drop down menu> drop down menu opens on class "open" might toggle class

<script>     $(".your_nav_bar_list_item_class").click(function(){     $(".your_nav_bar_list_item_class").toggleclass("open");       }): </script>