如何从给定的angularjs json数据中获取量子率

Json Data :

Json数据:

{
  "food": {
    "rates": {
      "defaultRates": {
        "cardRate": 600,
        "discountedRate": 500
      },
      "otherRates": [
        {
          "cardRate": 600,
          "discountedRate": 400,
          "fields": [
            {
              "name": "Quantity",
              "min": 3,
              "max": 6
            }
          ],
          "name": "3-6 Quantity"
        },
        {
          "cardRate": 600,
          "discountedRate": 300,
          "fields": [
            {
              "name": "Quantity",
              "min": 7
            }
          ],
          "name": "7+ Quantity"
        }
      ]
    },
    "details" : {
      "name" : "Something"
    }
}
{
  "food": {
    "rate