从数组转换的json字符串中提取字段

// 假设有一个包含JSON字符串的数组
var jsonArray = [
  '{"name": "John", "age": 30, "city": "New York"}',
  '{"name": "Jane", "age": 25, "city": "London"}',
  '{"name": "Bob", "age": 35, "city": "Paris"}'
];

// 解析JSON字符串为数组对象
var jsonObjects = jsonArray.map(JSON.parse);

// 提取字段的值
var names = jsonObjects.map(obj => obj.name);
var ages = jsonObjects.map(obj => obj.age);
var cities = jsonObjects.map(obj => obj.city);

// 打印提取的结果
console.log(names);   // 输出：["John", "Jane", "Bob"]
console.log(ages);    // 输出：[30, 25, 35]
console.log(cities);  // 输出：["New York", "London", "Paris"]