bp_nav_item_has_subnav( string $nav_item = '', string $component = 'members' )

function bp_nav_item_has_subnav( $nav_item = '', $component = 'members' ) {
	$bp = buddypress();

	if ( ! isset( $bp->{$component}->nav ) ) {
		return false;
	}

	if ( ! $nav_item ) {
		$nav_item = bp_current_component();

		if ( bp_is_group() ) {
			$nav_item = bp_current_item();
		}
	}

	$has_subnav = (bool) $bp->{$component}->nav->get_secondary( array( 'parent_slug' => $nav_item ), false );

	/**
	 * Filters whether or not a given nav item has subnav items.
	 *
	 * @since BuddyPress 1.5.0
	 *
	 * @param bool   $has_subnav Whether or not there is any subnav items.
	 * @param string $nav_item   The slug of the top-level nav item whose subnav items you're checking.
	 */
	return apply_filters( 'bp_nav_item_has_subnav', $has_subnav, $nav_item );
}