Loading scripts to the Post Edit page only

We can improve a little bit with :

function specific_enqueue($hook_suffix) {
   if( 'post.php' == $hook_suffix || 'post-new.php' == $hook_suffix ) {
     wp_enqueue_script( 'custom_js', get_template_directory_uri() . '/inc/meta/custom.js', array( 'jquery' ));
     wp_enqueue_style( 'custom_css', get_template_directory_uri() . '/inc/meta/custom.css')
  }
}
add_action( 'admin_enqueue_scripts', 'specific_enqueue' );