How can we know we are not in edit page

Use the following code in the functions.php file at your theme’s folder

    function my_enqueue($hook) {
        if ( 'edit.php' == $hook ) {
            return;
        }

        wp_register_script( 'xxx', get_template_directory_uri() . '/includes/js/slider.js', array( 'jquery' ) );
        wp_enqueue_script( 'xxx' );
    }
    add_action( 'admin_enqueue_scripts', 'my_enqueue' );

The admin_enqueue_scripts action hook can also be used to target a specific admin page.