如何使用Jquery从Json中的嵌套数组或嵌套对象中grep数组

{
  "users": [
    {
      "name": "Alice",
      "age": 30,
      "hobbies": ["reading", "swimming"]
    },
    {
      "name": "Bob",
      "age": 25,
      "hobbies": ["gaming", "hiking"]
    }
  ]
}

// 假设jsonData是上面的JSON字符串转换成的JavaScript对象
var jsonData = {
  "users": [
    {
      "name": "Alice",
      "age": 30,
      "hobbies": ["reading", "swimming"]
    },
    {
      "name": "Bob",
      "age": 25,
      "hobbies": ["gaming", "hiking"]
    }
  ]
};

// 用于存储所有爱好的数组
var allHobbies = [];

// 使用jQuery的$.each()函数遍历users数组
$.each(jsonData.users, function(index, user) {
  // 再次使用$.each()函数遍历每个用户的hobbies数组
  $.each(user.hobbies, function(hobbyIndex, hobby) {
    // 将爱好添加到allHobbies数组中
    allHobbies.push(hobby);
  });
});

// 输出所有爱好
console.log(allHobbies);

var filteredHobbies = [];

$.each(jsonData.users, function(index, user) {
  if (user.age > 28) {
    $.each(user.hobbies, function(hobbyIndex, hobby) {
      filteredHobbies.push(hobby);
    });
  }
});

console.log(filteredHobbies);

$.each(jsonData.users, function(index, user) {
  console.log(user.name); // 使用点表示法
  console.log(user['age']); // 使用方括号表示法
});