WordPress - add custom admin scripts in your theme functions.php #wordpress
/**
* Enqueue scripts and styles for admin.
*/
function custom_admin_js() {
$url = get_bloginfo('template_directory') . '/js/wp-admin-scripts.js';
echo '"<script type="text/javascript" src="'. $url . '"></script>"';
}
add_action('admin_footer', 'custom_admin_js');