add active class menu

this snippet help me for add active class for menu

//add active class to menu
add_filter('nav_menu_css_class', 'remove_active_nav_menu_css_class');
function remove_active_nav_menu_css_class($classes) {

    if( in_array('current-menu-item', $classes) ){
       $classes[] = 'active ';
    }
    return $classes;
}