Загрузка стилей и скриптов WordPress

load_css_js.php

# load css/js
add_action( 'wp_enqueue_scripts', 'add_styles_scripts' );
function add_styles_scripts() {
	# Jquery
	wp_deregister_script('jquery-core');
	wp_register_script('jquery-core', '//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js');
	wp_enqueue_script('jquery');

	# css
	wp_register_style( 'theme-css', get_bloginfo('template_url').'/style.css' );
	wp_enqueue_style('theme-css');

	wp_register_style( 'theme-fonts', get_bloginfo('template_url').'/fonts.css' );
	wp_enqueue_style('theme-fonts');

	# slick
	global $cat_diet_id;
	$current_cat = get_query_var('cat'); 
	$enqueue_slick = false;
	if ( is_front_page() ) {
		$enqueue_slick = true;
	} elseif ( $cat_diet_id && is_category($cat_diet_id) || cat_is_ancestor_of($cat_diet_id, $current_cat) ) {
		$enqueue_slick = true;
	}
	if ($enqueue_slick) {
		wp_register_script( 'theme-slick', get_bloginfo('template_url').'/js/slick.min.js', ['jquery'] );	
		wp_enqueue_script('theme-slick');
	}

	# modal
	wp_register_script( 'theme-modal', get_bloginfo('template_url').'/js/arcticmodal/jquery.arcticmodal-0.3.min.js', array('jquery') );
	wp_enqueue_script('theme-modal');

	# likely
	if ( is_single() ) {
		wp_register_script( 'theme-likely', get_bloginfo('template_url').'/js/likely/likely.js', ['jquery'] );
		wp_enqueue_script('theme-likely');
		
		wp_register_style( 'theme-likely-css', get_bloginfo('template_url').'/js/likely/style.css' );
		wp_enqueue_style('theme-likely-css');
	}

	# comments
	if ( is_singular() && comments_open() && (get_option('thread_comments') == 1) ) {
		wp_enqueue_script('comment-reply'); 
	}

	# scripts.js
	wp_register_script( 'theme-scripts', get_bloginfo('template_url').'/js/scripts.js', ['jquery'] );
	wp_enqueue_script('theme-scripts');

	# Для плагина
	wp_register_script( 'morkovin-makeev-youtube-script', plugin_dir_url( __FILE__ ) . 'video.js', array(), null, true );
	wp_enqueue_script('morkovin-makeev-youtube-script');
}