javascript - 重置对象顺序 javascript

Question

我有一个这样的对象

{ 
   "items":{ 
      "2":{ 
         "id":122,
         "product_id":"DE",
         "price":"9.35",
      },
      "4":{ 
         "id":15,
         "product_id":"CH",
         "price":"8.00",
      }
     "7":{ 
         "id":78,
         "product_id":"CH",
         "price":"3.00",
      }
   },
   "total_price":"20.35",
   "item_count":2,
   "unit":"CHF"
}

你知道我如何重置商品顺序吗？

现在 2、4、7

应该是 0, 1, 2

Answer 1

创建了 JSfiddle这向您展示了一种方法。

我使用自定义格式函数:

function format(object) {
    var items = {};

    var i = 0;
    for (var index in object.items) {
        items[i] = object.items[index];
        i++;
    }

    object.items = items;
}

结果对象是这样的:

{
    "items": {
        "0": {
            "id": 122,
            "product_id": "DE",
            "price": "9.35"
        },
        "1": {
            "id": 15,
            "product_id": "CH",
            "price": "8.00"
        },
        "2": {
            "id": 78,
            "product_id": "CH",
            "price": "3.00"
        }
    },
    "total_price": "20.35",
    "item_count": 2,
    "unit": "CHF"
}