js中花括号包变量

const person = {
  name: 'Alice',
  age: 25,
  greet() {
    console.log(`Hello, my name is ${this.name}`);
  }
};

person.greet(); // 输出: Hello, my name is Alice

const person = { name: 'Bob', age: 30 };
const { name, age } = person;

console.log(name); // 输出: Bob
console.log(age);  // 输出: 30

{
  let blockScopedVar = 'I am block scoped';
  console.log(blockScopedVar); // 输出: I am block scoped
}
console.log(blockScopedVar); // 报错: ReferenceError: blockScopedVar is not defined

function tag(strings, ...values) {
  console.log(strings);
  console.log(values);
}

const name = 'Charlie';
tag`Hello, ${name}!`; // 输出: ["Hello, ", "!"] 和 ["Charlie"]