从JSON获取嵌套数组数据

{
  "name": "John",
  "age": 30,
  "hobbies": ["reading", "music", "sports"],
  "address": {
    "street": "123 Main St",
    "city": "New York",
    "country": "USA"
  }
}

const jsonStr = '{"name":"John","age":30,"hobbies":["reading","music","sports"],"address":{"street":"123 Main St","city":"New York","country":"USA"}}';

// 解析JSON字符串
const jsonObj = JSON.parse(jsonStr);

// 获取嵌套数组数据
const hobbies = jsonObj.hobbies;

// 遍历数组并打印每个元素
for (let i = 0; i < hobbies.length; i++) {
  console.log(hobbies[i]);
}