json对象的Javascript循环[复制]

Question

我知道这可能已经被问了一百万次了，但我花了一整天的时间，我无法解决我的问题。就是这样。我有一个json对象，格式如下。

所以我试图循环通过这个json对象，但就是做不到。我只是可以开始工作。例如：

const json = [
  [{
    "Id": 1,
    "Name": "Jeffreys Bay",
    "ProvinceID": 1
  }, {
    "Id": 2,
    "Name": "Heidelberg",
    "ProvinceID": 3
  }]
]

for (let x in json) {
  console.log(x + ': ' + json[x]);
}

返回

core.js:6479 ERROR SyntaxError: Unexpected token o in JSON at position 1
    at JSON.parse (<anonymous>)
    at SafeSubscriber._next (location.page.ts:71)
    at SafeSubscriber.__tryOrUnsub (Subscriber.js:183)
    at SafeSubscriber.next (Subscriber.js:122)
    at Subscriber._next (Subscriber.js:72)
    at Subscriber.next (Subscriber.js:49)
    at MapSubscriber._next (map.js:35)
    at MapSubscriber.next (Subscriber.js:49)
    at FilterSubscriber._next (filter.js:33)
    at FilterSubscriber.next (Subscriber.js:49)

请帮帮我？？

Answer 1

尝试这样做：

const json = [
  [{
    "Id": 1,
    "Name": "Jeffreys Bay",
    "ProvinceID": 1
  }, {
    "Id": 2,
    "Name": "Heidelberg",
    "ProvinceID": 3
  }]
]

for (let x in json) {
  console.log(x + ': ' + JSON.stringify(json[x]));
}