JavaScript JSON.stringify() 方法详解：参数与格式化输出

let person = {
  "name": "John Doe",
  "age": 32,
  "hobbies": ["reading", "cooking", "swimming"]
};
let personString = JSON.stringify(person);
console.log(personString);
// Output:
// "{"name":"John Doe","age":32,"hobbies":["reading","cooking","swimming"]}"
- 这个示例，很常见，在浏览器打印输出，并想复制出结果到文本编辑器时，经常这么打印。

const student = {
  name: 'John Doe',
  age: 23,
  hobbies: ['reading', 'swimming', 'hiking']
};
const studentString = JSON.stringify(student, ['name', 'hobbies'], 4);
console.log(studentString);
// 输出：
/*
{
    "name": "John Doe",
    "hobbies": [
        "reading",
        "swimming",
        "hiking"
    ]
}
*/