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                class Person {
  constructor() { = 'An Vu';
    this.age = 30;
    const getName = () => {
      console.log(`Name: ${}`);

    const getAge = function() {
      // this ở function thường trong class sẽ là undefined
      try {
        console.log('Age: ' + this.age);
      } catch (ex) {
        console.log('This của Age: ' + typeof this);

    // Cách để sử dụng function thường bên trong
    let getAgeBinding = function() {
      // this ở function này đã bị ghi đè bởi this của class
      console.log('Age: ' + this.age);
    getAgeBinding = getAgeBinding.bind(this);

  getInfo() {
    console.log(`Info: ${} (${this.age})`);

let person = new Person().getInfo();