我正在尝试对 Shopify 中购物车中的产品类型进行一些计算。这需要 2 个相关的 getJSON 调用。下面是我目前拥有的代码，显然它有一些问题，我不知道克服它们的最佳方法。我不想关闭异步，因为这似乎是一种 hacky 方式。
var smallCount, mediumCount, largeCount;
$(document).ready(function()
{
$.getJSON('/cart.js', function(cart) //Gets all the items in a cart.
{
smallCount = 0; mediumCount = 0; largeCount = 0;
//Go through each item in the cart.
for(var i = 0; i < cart.items.length; i++)
{
//For each item we're going to grab the json info
//Specifically looking for the product type
$.getJSON('/products/'+cart.items[i].handle+'.js', function(product) {
if(product.type == "Small")
{ smallCount += cart.items[i].quantity; } //These don't work
else if (product.type == "Medium")
{ mediumCount += cart.items[i].quantity; } //These don't work
else if (product.type == "Large")
{ largeCount += cart.items[i].quantity; } //These don't work
});
}
//Here or below I'd like to do some analysis on the product types in the cart.
//I want to get all of the counts and then do some work with them.
mathHappening = smallCount + mediumCount + largeCount;
});
});