json - Freebase:使用 "namespace-prefix key"Json 对象

Question

我已经向 freebase API 发出请求，查询是:

{
  "id" : "/m/01f8mn",
  "key" : [{
    "namespace" : "/wikipedia/en_id",
    "value" : null
  }],
  "key" : [{
    "namespace" : "/authority/mobygames/game",
    "value" : null
  }]  
}​

我从 Freebase 得到了答案:

{
  "code":          "/api/status/ok",
  "result": {
    "id": "/m/01f8mn",
    "key": [{
      "namespace": "/wikipedia/en_id",
      "value":     "213502"
    }],
    "ns0:key": [{
      "namespace": "/authority/mobygames/game",
      "value":     "prince-of-persia"
    }],
    "ns1:key": [{
      "namespace": "/authority/giantbomb/game",
      "value":     "61-2561"
    }]
  },
  "status":        "200 OK",
  "transaction_id": "cache;cache03.p01.sjc1:8101;2012-05-20T18:37:04Z;0060"
}

如您所见，结果中有一个“命名空间前缀”键(“ns0:key”、“ns1:key”)

问题是:我如何用 Javascript 对象处理这个问题？谁能帮忙？

Answer 1

当访问名称中带有特殊字符的属性时，就像访问关联数组属性一样访问它:

yourObject.result["ns0:key"]

由于命名空间和值属性存储在作为数组第一个索引的对象内部，要访问命名空间和值，请使用以下语法:

yourObject.result["ns0:key"][0].namespace
yourObject.result["ns0:key"][0].value       // contains "prince-of-persia"

yourObject.result["ns1:key"][0].namespace
yourObject.result["ns1:key"][0].value       // contains "61-2561"