如何组合javascript对象然后转换为JSON？

Question

我有两个javascript对象。找到两个对象：

var tableRespondent = [{Id: 1, name: "abc", mail: "abc@gmail.com"}];
var tableQuestionnaire = [{Id: 1, externalId: "Q1", text: "Food Questionnaire"}, {Id: 2, externalId: "Q2", text: "Pet Questionnaire"}];

现在我需要将它们组合成以下格式：

var output = {Respondent: [{Id: 1, name: "abc", mail: "abc@gmail.com"}], Questionnaire: [{Id: 1, externalId: "Q1", text: "Food Questionnaire"},{Id: 2, externalId: "Q2", text: "Pet Questionnaire"}] };

然后我需要将其转换为JSON，如下所示：

var outputJson = var output = {"Respondent": [{"Id": 1, "name": "abc", "mail": "abc@gmail.com"}], Questionnaire: [{"Id": 1, "externalId": "Q1", "text": "Food Questionnaire"}, {"Id": 2, "externalId": "Q2", "text": "Pet Questionnaire"}] };

应该如何实现？我对javascript很新。

Answer 1

以下代码可以帮助您

var output = {};
var tableRespondent = [{Id: 1, name: "abc", mail: "abc@gmail.com"}];
var tableQuestionnaire = [{Id: 1, externalId: "Q1", text: "Food Questionnaire"}, {Id: 2, externalId: "Q2", text: "Pet Questionnaire"}];

output['tableRespondent'] = tableRespondent;
output['tableQuestionnaire'] = tableQuestionnaire;

output = JSON.stringify(output);

console.log(output);

//Json string
console.log(typeof output);