Wordpress: How to add Attribute to body

Question

I want to add Scrollspy support to the nav-menu, for that I have to add extra attributes data-spy="scroll" data-target=".navbar" to the body tag.

Can I do that pragmatically without touching theme files?

Answer 1

One way would be to:- Edit header.php And add those attributes to the body.

Alternative (without editing theme files) way would be to create a plugin which adds a js that adds those attributes to body. Something like this:-

$("body").attr( { data-spy:"scroll", data-target:".navbar" } );

EDIT After viewing Sevi's answers. The most suitable way is

function wp_body_classes( $classes )
{
    $classes[] = '" spy="scroll" data-target=".navbar';

    return $classes;
}
add_filter( 'body_class','wp_body_classes', 999 );