Code-Snippets-Functions/Execute a function on a child site/WooCommerce/hide-sale-badge-if-product-is-out-of-stock.txt

add_filter( 'woocommerce_sale_flash', 'wc_no_sale_badge_if_out_of_stock', 9999, 3 );
 
function wc_no_sale_badge_if_out_of_stock( $html, $post, $product ) {
   if ( ! $product->is_in_stock() ) return;
   return $html;
}