Variables from WP to JS files

Server side :

add_action('wp_enqueue_scripts', 'load_scripts');

function load_scripts (){

	$data = array(
		'siteURL' => site_url()
	);
	$data_inline = 'const wpData = ' . json_encode( $data );

	$handle = 'jsfile';

	wp_enqueue_script(
		$handle,
		get_stylesheet_directory_uri() . '/assets/js/script.js',
		array(),
		filemtime( get_stylesheet_directory() . '/assets/js/script.js' ),
		true
	);

	wp_add_inline_script( $handle, $data_inline );

}

Client side :

const siteURL = wpData.siteURL;