Enqueue Frontend Scripts Action

The siteorigin_widgets_enqueue_frontend_scripts_{$id_base} action enqueues extra front-end scripts and styles for one widget, where {$id_base} is the widget's base ID. Use it for a widget you're extending, and enqueue scripts for your own widgets as Initializing a Widget describes. The action runs each time the widget renders, except in a Page Builder preview.

/**
 * @param array $instance The button instance.
 * @param SiteOrigin_Widget $widget The widget object.
 */
function wbe_enqueue_button_frontend_scripts( $instance, $widget ) {
    wp_enqueue_script( ... );
    wp_enqueue_style( ... );
}
add_action( 'siteorigin_widgets_enqueue_frontend_scripts_sow-button', 'wbe_enqueue_button_frontend_scripts', 10, 2 );