如何將數組屬性推送到 JS 上的 JSON object

Question

我有這個 json object：

 [
  {
    "id": "imrhf5owlv9j4jj0",
    "_status": "created",
    "_changed": "",
    "description": null,
    "customer_name": "HUGO",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "expense",
    "value": 0,
    "date_at": 1664147419693,
    "category_id": "",
    "cont\r\nact_id": "",
    "created_at": 1664147419687,
    "updated_at": 1664147419687
  },
  {
    "id": "san36ma2i3rs7quv",
    "_status": "created",
    "_changed": "",
    "description": null,
    "customer_name": "So queria ser eu mesmo",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "customer",
    "val\r\nue": 0,
    "date_at": 1664147602340,
    "category_id": "",
    "contact_id": "",
    "created_at": 1664147602334,
    "updated_at": 1664147602334
  },
  {
    "id": "qgscc5qe0hdtwhqh",
    "_status": "created",
    "_changed": "",
    "description": null,
    "customer_name": "SW",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "expense",
    "value": 0,
    "date_at": 1664150619834,
    "category_id": "",
    "contact_id": "",
    "created_at": 1664150619831,
    "updated_at": 1664150619831
  }
] 

我想要做的是在每個 json 中添加一個新的數組屬性，例如：

[
  {
    "id": "imrhf5owlv9j4jj0",
    "_status": "created",
    "_changed": "",
    "description": null,
    "customer_name": "HUGO",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "expense",
    "value": 0,
    "date_at": 1664147419693,
    "category_id": "",
    "cont\r\nact_id": "",
    "created_at": 1664147419687,
    "updated_at": 1664147419687
  },
  {
    "id": "san36ma2i3rs7quv",
    "_status": "created",
    "_changed": "",
    "description": null,
    "customer_name": "So queria ser eu mesmo",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "customer",
    "val\r\nue": 0,
    "date_at": 1664147602340,
    "category_id": "",
    "contact_id": "",
    "created_at": 1664147602334,
    "updated_at": 1664147602334
  },
  {
    "id": "qgscc5qe0hdtwhqh",
    "_status": "created",
    "_changed": "",
    "description": null,
    "customer_name": "SW",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "expense",
    "value": 0,
    "date_at": 1664150619834,
    "category_id": "",
    "contact_id": "",
    "created_at": 1664150619831,
    "updated_at": 1664150619831
  }, 
],
"contact": [
    "customer_name": "SW",
    "aparent_potencial": "",
    "real_potencial": "",
    "type": "expense",
    "value": 0,
    "date_at": 1664150619834,
    "category_id": "",
    "contact_id": "",
    "created_at": 1664150619831,
    "updated_at": 1664150619831
]

我試圖使用推送，但還沒有解決方案，如下所示：

changes.customer.created.push({contact: changes.contact.created})

但它在 object 中創建了一個字符串：

[{"id":"imrhf5owlv9j4jj0","_status":"created","_changed":"","description":null,"customer_name":"HUGO","aparent_potencial":"","real_potencial":"","type":"expense","value":0,"date_at":1664147419693,"category_id":"","cont
act_id":"","created_at":1664147419687,"updated_at":1664147419687},{"id":"san36ma2i3rs7quv","_status":"created","_changed":"","description":null,"customer_name":"So queria ser eu mesmo","aparent_potencial":"","real_potencial":"","type":"customer","val
ue":0,"date_at":1664147602340,"category_id":"","contact_id":"","created_at":1664147602334,"updated_at":1664147602334},{"id":"qgscc5qe0hdtwhqh","_status":"created","_changed":"","description":null,"customer_name":"SW","aparent_potencial":"","real_potencial":"","type":"expense","value":0,"date_at":1664150619834,"category_id":"","contact_id":"","created_at":1664150619831,"updated_at":1664150619831},"contact:[object Object],[object Object],[object Object]"]

另外，有沒有辦法刪除進入 json 的這種類型的字符？

cont\r\nact_id

非常感謝！

Answer 1

json 數組不能包含字符串鍵。 你可以這樣使用

let json = {}
json.contact = { "customer_name": "SW" }
json.array = [ {"id":1,},{"id":2,}]

Answer 2

Javascript 的 push function 僅在您將值推送到數組時才有效。 如果您嘗試推送到 object，它將不起作用，而是會嘗試調用不存在的“推送”鍵。 這就是為什么你得到你得到的錯誤。

確保 $scope.item 是一個數組（[] 或 new Array），然后使用您想要的值推送到它。

 $scope.item = [];
 $scope.push = function () {  
   $scope.item.push({"contact":[]});
 };

Answer 3

您必須將其放在不同的文件中才能實現這些示例格式。 而且您的聯系人數組值不是正確的類型。 數組不包含字符串鍵。 Object {"customer_name": "SW"}或字符串"'customer_name': 'SW'" 。

並且您的 json 文件內容需要在 {} 或 [] 內。 但是您的示例格式不是 json 的正確格式。