数组中对象的属性

// 定义一个包含对象的数组
let users = [
  {
    id: 1,
    name: "Alice",
    age: 25,
    email: "alice@example.com"
  },
  {
    id: 2,
    name: "Bob",
    age: 30,
    email: "bob@example.com"
  }
];

// 访问数组中第一个用户的名字
console.log(users[0].name); // 输出: Alice

// 添加一个新的用户对象
users.push({
  id: 3,
  name: "Charlie",
  age: 35,
  email: "charlie@example.com"
});

// 遍历数组并打印每个用户的详细信息
users.forEach(user => {
  console.log(`ID: ${user.id}, Name: ${user.name}, Age: ${user.age}, Email: ${user.email}`);
});

// 查找年龄大于30的用户
let olderUsers = users.filter(user => user.age > 30);
console.log(olderUsers); // 输出: [{ id: 2, name: "Bob", age: 30, email: "bob@example.com" }, { id: 3, name: "Charlie", age: 35, email: "charlie@example.com" }]

// 查找特定ID的用户
let specificUser = users.find(user => user.id === 2);
console.log(specificUser); // 输出: { id: 2, name: "Bob", age: 30, email: "bob@example.com" }