Automated Cart Update With Alert Box Each Time

// Display sku in cart
add_filter( ‘woocommerce_get_item_data’, ‘func_js_display_custom_item_data_in_cart’, 100, 2 );
function func_js_display_custom_item_data_in_cart( $cart_item_data, $cart_item )
{
$cart_item_data[] = array(
‘name’ => __( ‘SKU ‘, ‘woocommerce’ ),
‘value’ => ” . $cart_item[‘data’]->get_sku() . ‘ ‘,
);

return $cart_item_data;

}

add_action( ‘wp_footer’, ‘cart_update_qty_script’ );
function cart_update_qty_script() {
if (is_cart()) :
?>

var $ = jQuery;
$(‘div.woocommerce’).on(‘change’, ‘.product-quantity .quantity input[id^=”quantity”]’, function()
{

        var qty = $(this).val();
        var sku = $(this).closest('tr.cart_item').find('.product_sku').html();
        alert("Your have changed the quantity of " + sku + " to " + qty + ".");
        
        $("[name="update_cart"]").prop("disabled", false);
        $("[name="update_cart"]").trigger("click");
        
    });

</script>

<?php
endif;

}