js方法_执行

// 实例方法
const person = {
  name: 'Alice',
  greet() {
    console.log(`Hello, my name is ${this.name}`);
  }
};

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

// 静态方法
class MathUtils {
  static square(x) {
    return x * x;
  }
}

console.log(MathUtils.square(5)); // 输出: 25

// 原型方法
function Person(name) {
  this.name = name;
}

Person.prototype.greet = function() {
  console.log(`Hello, my name is ${this.name}`);
};

const bob = new Person('Bob');
bob.greet(); // 输出: Hello, my name is Bob

// this指向问题
const obj = {
  name: 'Charlie',
  greet: function() {
    setTimeout(() => {
      console.log(`Hello, my name is ${this.name}`);
    }, 100);
  }
};

obj.greet(); // 输出: Hello, my name is Charlie

// 异步方法执行顺序
async function fetchData() {
  const data = await fetch('https://api.example.com/data');
  const json = await data.json();
  console.log(json);
}

fetchData();