Hide Widget Title if Empty

Hello, I am searching for the possible solution for my problem, but I wasn’t able to find a good one.

I just want to remove the before and after widget title if they are empty. I created a style for the title box, and it really looks ugly when empty.

Here’s my code

register_sidebar (array(
	'name'          => __( 'Homepage with Slider Sidebar', 'carpress_child' ),
	'id'            => 'hws-sidebar',
	'description'   => '',
    'class'         => '',
	'before_widget' => '<div id="%1$s" class="widget %2$s">',
	'after_widget'  => '</div>',
	'before_title'  => '<div class="lined"><h2>',
	'after_title'   => '</h2><span class="bolded-line"></span></div>' ));

I hope you can help me out with this.