WooCommerce: Incapacitate Attribute Select Unless Previous Is Selected (Variable Products)

On the single item page for a variable item, various dropdowns show with the goal that clients can choose their ideal quality decision.

In specific cases, you’d need them to follow the specific through and through property request while they’re choosing a particular variety. With that I imply that you need them to choose the principal trait first, then, at that point, the second, then, at that point, the third… fundamentally you need to incapacitate the “following quality select dropdowns” except if the past select changes to a worth that isn’t invalid.

PHP/JS Snippet: Incapacitate Next Attribute Dropdowns If Attribute Is Not Selected Variable Product Single Product Page

add_action( 'woocommerce_before_single_product', 'variable_product_selects_previous_selected' );
 
function variable_product_selects_previous_selected() {
   global $product;
   if ( ! $product->is_type( 'variable' ) ) return; // exit if not variable
   if ( count( $product->get_available_variations() ) < 2 ) return; // exit if only 1 attribute
   wc_enqueue_js( "
      function toggle_attributes() {
         $('table.variations tbody tr').each(function(){
            if ($(this).prev().find('td.value select').val()=='') {
               $(this).find('td.value select').attr('disabled',true).val(''); // if previous has no value, disable and reset
            } else $(this).find('td.value select').attr('disabled',false);
         });
      }
      toggle_attributes();
      $('table.variations select').change( function(){
         toggle_attributes();
      });
   " );
}