轉換地圖 <String, Object> 在javascript中使用json

Question

我有一個Map<String, Object> ，我想將它轉換為JSON 。

這是我有的：
第1點：聲明變量

var map = new Map(), //map
jsonObject= {}, // oject that needs to be converted to JSON
value1 = { topic: "someText1", status: "0", action: "1", comment: "someComment1" }, // values of Map
value2 = { topic: "someText2", status: "0", action: "0", comment: "someComment2" },
value3 = { topic: "someText3", status: "1", action: "1", comment: "someComment3" };

第2點：填充地圖
//映射的鍵是來自網頁的各種屬性的串聯，由|分隔

map.set('release|attachment|license1|topic1', value1);
map.set('release|attachment|license1|topic2', value1);
map.set('release1|attachment1|license1|topic1', value1);
map.set('release1|attachment1|license2|topic2', value2);
map.set('release1|attachment1|license3|topic3', value3);
map.set('release2|attachment2|license2|topic2', value2);
map.set('release2|attachment2|license2|topic3', value2);

第3點：迭代map並填充jsonObject

for (const [key, values] of map) {
    setPath(jsonObject, key.split('|'), values);
}
function setPath(obj, [...keys], item) {
    keys.pop(); // removing topic
    const last = keys.pop();
    keys.reduce((r, a) => r[a] = r[a] || {}, obj)[last] =  [item];
}

第4點：當前輸出[ console.log(JSON.stringify(jsonObject)); ]

{
  "release": {
    "attachment": {
      "license1": [
        {
          "topic": "someText2",
          "status": "0",
          "action": "0",
          "comment": "someComment2"
        }
      ]
    }
  },
  "release1": {
    "attachment1": {
      "license1": [
        {
          "topic": "someText1",
          "status": "0",
          "action": "1",
          "comment": "someComment1"
        }
      ],
      "license2": [
        {
          "topic": "someText2",
          "status": "0",
          "action": "0",
          "comment": "someComment2"
        }
      ],
      "license3": [
        {
          "topic": "someText3",
          "status": "1",
          "action": "1",
          "comment": "someComment3"
        }
      ]
    }
  },
  "release2": {
    "attachment2": {
      "license2": [
        {
          "topic": "someText3",
          "status": "1",
          "action": "1",
          "comment": "someComment3"
        }
      ]
    }
  }
}

第5點：預期輸出（jsonObject）

{
  "release": {
    "attachment": {
      "license1": [
        {
          "topic": "someText1", // ^^ This object is missing in current output.
          "status": "0",
          "action": "1",
          "comment": "someComment1"
        },
        {
          "topic": "someText2",
          "status": "0",
          "action": "0",
          "comment": "someComment2"
        }
      ]
    }
  },
  "release1": {
    "attachment1": {
      "license1": [
        {
          "topic": "someText1",
          "status": "0",
          "action": "1",
          "comment": "someComment1"
        }
      ],
      "license2": [
        {
          "topic": "someText2",
          "status": "0",
          "action": "0",
          "comment": "someComment2"
        }
      ],
      "license3": [
        {
          "topic": "someText3",
          "status": "1",
          "action": "1",
          "comment": "someComment3"
        }
      ]
    }
  },
  "release2": {
    "attachment2": {
      "license2": [
        {
          "topic": "someText2", // ^^ This object is missing in current output.
          "status": "0",
          "action": "0",
          "comment": "someComment2"
        },
        {
          "topic": "someText3",
          "status": "1",
          "action": "1",
          "comment": "someComment3"
        }
      ]
    }
  }
}

^^我想在jsonObject擁有對象數組。

有人可以幫我調整需要在第3點的 setPath函數中完成，以獲得預期的結果嗎？

PS：我知道我在這里問了類似的問題。

Answer 1

您正在覆蓋許可證陣列，而不是僅添加新項目。

改變這一行

keys.reduce((r, a) => r[a] = r[a] || {}, obj)[last] =  [item];

對此

const target = keys.reduce((r, a) => r[a] = r[a] || {}, obj);
(target[last] = target[last] || []).push(item);