使用regex对Json数据执行循环。

Question

我想循环json数据，但是选择产品，困难在于我想要选择的对象遵循模式产品-*。我想找到一种允许以下内容的代码：

$.each(data.products, function(i, product) {
   console.log(product.products_name);
});

实际数据JSON是：

{
    "orders_id": "411",
    "customers_name": "Larez",
    "product-1": {
        "product_name": "Walt",
        "product_type": "Poster",
        "product_quantity": "100",
        "product_size": "1/4 Pliego",
        "product_price": "100.00"
    },
    "product-2": {
        "product_name": "Penny",
        "product_type": "Poster",
        "product_quantity": "15",
        "product_size": "1/4 Pliego",
        "product_price": "15.00"
    },
    "product-3": {
        "product_name": "Carol",
        "product_type": "Poster",
        "product_quantity": "50",
        "product_size": "1/4 Pliego",
        "product_price": "50.00"
    },
    "product-4": {
        "product_name": "Julia",
        "product_type": "Poster",
        "product_quantity": "100",
        "product_size": "1/4 Pliego",
        "product_price": "100.00"
    }
}

Answer 1

不如：

var data = { /* your data */ };
var product,
    i = 1;
while(product = data['product-' + i++]) {
    console.log(product.products_name);
}

Answer 2

您可以使用像underscore.js这样的库，并执行如下操作来获得产品密钥的数组。

r = /product-\d+/
product_keys = _.filter(_.keys(json), function(k) { return r.test(k) });

然后，您可以直接使用产品密钥进行迭代。