請幫助更改嵌套在字典中的鍵

您好，我是 javascript 的初學者，如果您能幫助我，那就太好了

topicMessage = { topic: 'some_topic', messages: [{ 'myKey': '{"data": {"my name is ":"aman", "age": 22, "my ed": "btech"}, "meta": {"myAge":24, "school":"aps"}}' }, { 'myKey2': '{ "data": { "my name is 2": "aman", "age": 22, "my ed 2": "btech" }, "meta": { "myAge2": 24, "school": "aps" } } ' }, { "myKey3": '{"data": {"my name is 3":"aman", "age": 22, "my ed 3": "btech"}, "meta": {"myAge":24, "school":"aps"}}' } ] }

這里在資料部分 topicMessages 的訊息中，我們必須將鍵分隔開，mykey、mykey2、mykey3 的值是字串形式，所以需要先將 JSON.parse 轉換為物件，然后再將其轉換回字串，有人可以嗎請幫助，例如對于 myKey 的值中的訊息，這是一個字串，用于鍵、資料、值，它又是一個物件，這里鍵“我的名字是”變成了“我的名字”，“我的 ed”變成“my-ed”

我正在嘗試使用這個，

for(let i = 0; i < topicMessages.messages.length; i  ){
    for(const [key, value] of Object.entries(topicMessages.messages[i])){
        for(const [key1, value1] of Object.entries(topicMessages.messages[i])){
            if(key1.includes(" ")){
                const newKey = key1.replace(/\s /g, "-")
                topicMessages.messages[i][key]["data"][newkey] = topicMessages.messages[i][key]["data"][key1];
                delete topicMessages.messages[i][key]["data"][key1];         
}
}
}
}

預期輸出：

topicMessage = { topic: 'some_topic', messages: [{ 'myKey': '{"data": {"my-name-is ":"aman", "age": 22, "my-ed": "btech"}, "meta": {"myAge":24, "school":"aps"}}' }, { 'myKey2': '{ "data": { "my-name-is-2": "aman", "age": 22, "my-ed-2": "btech" }, "meta": { "myAge2": 24, "school": "aps" } } ' }, { "myKey3": '{"data": {"my-name-is-3":"aman", "age": 22, "my-ed-3": "btech"}, "meta": {"myAge":24, "school":"aps"}}' } ] }

顯示代碼片段

topicMessages = {
  topic: 'some_topic',
  messages: [{
    'myKey': '{"data": {"my name is ":"aman", "age": 22, "my ed": "btech"}, "meta": {"myAge":24, "school":"aps"}}'
  }, {
    'myKey2': '{ "data": { "my name is 2": "aman", "age": 22, "my ed 2": "btech" }, "meta": { "myAge2": 24, "school": "aps" } } '
  }, {
    "myKey3": '{"data": {"my name is 3":"aman", "age": 22, "my ed 3": "btech"}, "meta": {"myAge":24, "school":"aps"}}'
  }]
}

for (let i = 0; i < topicMessages.messages.length; i  ) {
  for (const [key, value] of Object.entries(topicMessages.messages[i])) {
    for (const [key1, value1] of Object.entries(topicMessages.messages[i])) {
      if (key1.includes(" ")) {
        const newKey = key1.replace(/\s /g, "-")
        topicMessages.messages[i][key]["data"][newkey] = topicMessages.messages[i][key]["data"][key1];
        delete topicMessages.messages[i][key]["data"][key1];
      }
    }
  }
}

console.log(topicMessages)

uj5u.com熱心網友回復：

結果很丑，但它有效

看一看

const topicMessage = {
  topic: 'some_topic',
  messages: [{
    'myKey': '{"data": {"my name is ":"aman", "age": 22, "my ed": "btech"}, "meta": {"myAge":24, "school":"aps"}}'
  }, {
    'myKey2': '{ "data": { "my name is 2": "aman", "age": 22, "my ed 2": "btech" }, "meta": { "myAge2": 24, "school": "aps" } } '
  }, {
    "myKey3": '{"data": {"my name is 3":"aman", "age": 22, "my ed 3": "btech"}, "meta": {"myAge":24, "school":"aps"}}'
  }]
}


const renameKeys = (data) =>
  data.map(o =>
    Object.keys(o).reduce((res, k) => {
      const json = o[k]
      const {data, ...rest} = JSON.parse(json)

      return {
        ...res,
        [k]: JSON.stringify({
          ...rest,
          data: Object.keys(data).reduce((res, key) => {
            return {
              ...res,
              [key.replace(/\s /g, "-")]: data[key]
            }
          }, {})
        })
      }
    }, {})
  )





topicMessage.messages = renameKeys(topicMessage.messages)

console.log(topicMessage)

標籤：javascript 字典 解析 嵌套的 钥匙

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