將鍵/值對添加到特定的 Javascript 對象

Question

var data = {
  "2738": {
      "Question": "How are you?",
      "Answer": "I'm fine"
  },
  "4293": {
      "Question": "What's your name?",
      "Answer": "My name is John"
  }
}

var newQuestion = "Where are you from?";
var newAnswer = "I'm from Australia";

如果我想使用特定 ID 將我的新問題/答案添加到我的數據中，我可以這樣做：

data[6763] = {
  "Question" : newQuestion,
  "Answer" : newAnswer,
}

但是如果我想分別添加問題和答案怎么辦？ （例如同時執行代碼）

我嘗試了以下但沒有一個工作：

data[6763].Question = newQuestion;
data[6763].Answer = newAnswer;

data[6763] = {"Question" : newQuestion};
data[6763] = {"Answer" : newAnswer};

Object.getOwnPropertyNames(data)[6763].Question = newQuestion;
Object.getOwnPropertyNames(data)[6763].Answer = newAnswer;

Answer 1

你可以這樣，錯誤是你必須先綁定“6773”對象

 let data = { "2738": { "Question": "How are you?", "Answer": "I'm fine" }, "4293": { "Question": "What's your name?", "Answer": "My name is John" } } let newQuestion = "Where are you from?"; let newAnswer = "I'm from Australia"; data[6763]={} // mistake was here you first bind the "6773" object data[6763]['Question'] = newQuestion; data[6763]['Answer'] = newAnswer; console.log(data)

Answer 2

您必須先初始化date[6763] ：

 var data = { "2738": { "Question": "How are you?", "Answer": "I'm fine" }, "4293": { "Question": "What's your name?", "Answer": "My name is John" } }; var newQuestion = "1", newAnswer = "2"; data[6763] = {}; data[6763].Question = newQuestion; data[6763].Answer = newAnswer; console.log(data);