如何将对象数组转换为json

var objArray = [
  { name: "John", age: 30, city: "New York" },
  { name: "Jane", age: 25, city: "San Francisco" },
  { name: "Bob", age: 35, city: "Seattle" }
];

var json = JSON.stringify(objArray);

console.log(json);

[
  {"name":"John","age":30,"city":"New York"},
  {"name":"Jane","age":25,"city":"San Francisco"},
  {"name":"Bob","age":35,"city":"Seattle"}
]

exports.main_handler = async (event, context, callback) => {
  var objArray = [
    { name: "John", age: 30, city: "New York" },
    { name: "Jane", age: 25, city: "San Francisco" },
    { name: "Bob", age: 35, city: "Seattle" }
  ];

  var json = JSON.stringify(objArray);

  return json;
};