JSON.CN让代码更轻
JSON 结构对比可运行案例

预约记录：解释 bookings 首部插入导致的多处差异

数组按下标逐项比较。在 bookings 开头插入记录后，后续元素位置移动，会产生多处修改和一个尾部新增；这不等于多条业务记录都发生了真实字段变更。需要按 ID 配对时应先在自己的业务逻辑中处理。

浏览器本地处理合成数据同场景 32 个案例 ↗
试一试

示例工作台

在完整工具中打开 ↗
JSON 结构对比修改下方数据后重新运行
运行结果
[
  {
    "op": "replace",
    "path": "/data/bookings/0/bookingId",
    "oldValue": "demo-bookings-1",
    "value": "demo-inserted"
  },
  {
    "op": "replace",
    "path": "/data/bookings/0/title",
    "oldValue": "演示场地预约",
    "value": "新增演示记录"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/bookingId",
    "oldValue": "demo-bookings-2",
    "value": "demo-bookings-1"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/title",
    "oldValue": "演示会议预约",
    "value": "演示场地预约"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/guests",
    "oldValue": 8,
    "value": 2
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/confirmed",
    "oldValue": false,
    "value": true
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/roomType",
    "oldValue": "meeting",
    "value": "standard"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/schedule/date",
    "oldValue": "2026-01-16",
    "value": "2026-01-15"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/schedule/slots/0",
    "oldValue": "14:00",
    "value": "09:00"
  },
  {
    "op": "remove",
    "path": "/data/bookings/1/schedule/slots/1",
    "oldValue": "15:00"
  },
  {
    "op": "add",
    "path": "/data/bookings/2",
    "value": {
      "bookingId": "demo-bookings-2",
      "title": "演示会议预约",
      "guests": 8,
      "confirmed": false,
      "roomType": "meeting",
      "schedule": {
        "date": "2026-01-16",
        "slots": [
          "14:00",
          "15:00"
        ]
      }
    }
  }
]

原例已核验，可修改输入后重新运行。

⌘ / Ctrl + Enter 运行
01

场景与操作说明

预约日期字符串与时区需要额外约定。样本确认标记不代表真实资源可用，此页面不提交预约。

guests 是演示参与人数；房间容量不由本例自动校验。

  1. 核对 预约记录 的字段层级，保留 bookingId 的字符串类型。
  2. 修改一项输入并运行，观察结果中的值或路径如何变化。
  3. 载入对照样本，复现下面的变化；恢复原例会替换当前输入。
02

对照样本

对照样本交换 A 与 B。观察新增与删除的方向、修改前后值如何反转；没有差异时交换仍无差异。

查看对照输入
{
  "ok": true,
  "data": {
    "bookings": [
      {
        "bookingId": "demo-inserted",
        "title": "新增演示记录",
        "guests": 2,
        "confirmed": true,
        "roomType": "standard",
        "schedule": {
          "date": "2026-01-15",
          "slots": [
            "09:00"
          ]
        }
      },
      {
        "bookingId": "demo-bookings-1",
        "title": "演示场地预约",
        "guests": 2,
        "confirmed": true,
        "roomType": "standard",
        "schedule": {
          "date": "2026-01-15",
          "slots": [
            "09:00"
          ]
        }
      },
      {
        "bookingId": "demo-bookings-2",
        "title": "演示会议预约",
        "guests": 8,
        "confirmed": false,
        "roomType": "meeting",
        "schedule": {
          "date": "2026-01-16",
          "slots": [
            "14:00",
            "15:00"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}
{
  "ok": true,
  "data": {
    "bookings": [
      {
        "bookingId": "demo-bookings-1",
        "title": "演示场地预约",
        "guests": 2,
        "confirmed": true,
        "roomType": "standard",
        "schedule": {
          "date": "2026-01-15",
          "slots": [
            "09:00"
          ]
        }
      },
      {
        "bookingId": "demo-bookings-2",
        "title": "演示会议预约",
        "guests": 8,
        "confirmed": false,
        "roomType": "meeting",
        "schedule": {
          "date": "2026-01-16",
          "slots": [
            "14:00",
            "15:00"
          ]
        }
      }
    ],
    "summary": {
      "total": 2,
      "note": null
    }
  }
}

对照样本的实际结果

[
  {
    "op": "replace",
    "path": "/data/bookings/0/bookingId",
    "oldValue": "demo-inserted",
    "value": "demo-bookings-1"
  },
  {
    "op": "replace",
    "path": "/data/bookings/0/title",
    "oldValue": "新增演示记录",
    "value": "演示场地预约"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/bookingId",
    "oldValue": "demo-bookings-1",
    "value": "demo-bookings-2"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/title",
    "oldValue": "演示场地预约",
    "value": "演示会议预约"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/guests",
    "oldValue": 2,
    "value": 8
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/confirmed",
    "oldValue": true,
    "value": false
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/roomType",
    "oldValue": "standard",
    "value": "meeting"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/schedule/date",
    "oldValue": "2026-01-15",
    "value": "2026-01-16"
  },
  {
    "op": "replace",
    "path": "/data/bookings/1/schedule/slots/0",
    "oldValue": "09:00",
    "value": "14:00"
  },
  {
    "op": "add",
    "path": "/data/bookings/1/schedule/slots/1",
    "value": "15:00"
  },
  {
    "op": "remove",
    "path": "/data/bookings/2",
    "oldValue": {
      "bookingId": "demo-bookings-2",
      "title": "演示会议预约",
      "guests": 8,
      "confirmed": false,
      "roomType": "meeting",
      "schedule": {
        "date": "2026-01-16",
        "slots": [
          "14:00",
          "15:00"
        ]
      }
    }
  }
]