变体选择器没有响应 (Shopify)

如何解决变体选择器没有响应 (Shopify)

嘿，我刚刚在产品页面上添加了我自己的变体选择器。但它没有响应。它没有改变价格。旧的工作正常，但我的变体选择器不起作用。我认为它的js代码问题。

var selectCallback = function(variant,selector) {
var $addToCart = $('#button-cart'),$addToCartBuy = $('#button-cart-buy'),$addToCartSticky = $('#button-cart-sticky'),$productPrice = $('#productPrice'),$comparePrice = $('#comparePrice'),$variantQuantity = $('#variantQuantity'),$quantityElements = $('.quantity-selector,label + .js-qty'),$addToCartText = $('#button-cart'),$featuredImage = $('#productPhotoImg');
if (variant) {
 // Regardless of stock,update the product price
        Shopify.money_format = '{{shop.money_format }}'; 

        //var customPrice = timber.formatMoney( Shopify.formatMoney(variant.price,Shopify.money_format) );
        var a11yPrice = Shopify.formatMoney(variant.price,Shopify.money_format);
        // var customPriceFormat = ' <span aria-hidden="true">' + customPrice + '</span>';
        var customPriceFormat = ' <span class="visually-hidden">' + a11yPrice + '</span>';
        $productPrice.html(customPriceFormat);

        // Also update and show the product's compare price if necessary
        {% if settings.product_show_compare_at_price %}
        if ( variant.compare_at_price > variant.price ) {
          var a11yComparePrice = Shopify.formatMoney(variant.compare_at_price,Shopify.money_format);
          comparePriceFormat = ' <span class="visually-hidden">' + a11yComparePrice + '</span>';
          $comparePrice.html(comparePriceFormat);
          $comparePrice.show();
        } else {
          $comparePrice.hide();
        }
        {% endif %} } 
    };

    jQuery(function($) {
      var product = {{ product | json }};
      new Shopify.OptionSelectors('productSelect',{
        product: product,onVariantSelected: selectCallback,enableHistoryState: true
      });


    }); 

我应该在这里更改什么才能让我的变体选择器工作？