Упаковка

<script>
tcart.on('update', function() {
let totalWeight = 0;

for (let i = 0; i < tcart.products.length; i++) {
const product = tcart.products[i];
const weight = parseFloat(product.weight);
const quantity = parseInt(product.quantity);

if (!isNaN(weight) && !isNaN(quantity)) {
totalWeight += weight * quantity;
}
}

const weightText = `${totalWeight.toFixed(2)} кг`;

$('.t706__cartwin-products .t706__cartwin-product .t706__cartwin-product-quantity').each(function() {
$(this).after(`<div class="t706__cartwin-product-weight">${weightText}</div>`);
});
});
</script>