text: export class Person {
    constructor(firstname, lastname, age) {
      this.firstname = firstname;
      this.lastname = lastname;
      this.age = age;
    }
  
    greet() {
      console.log(
        "Hi, my name is " + this.firstname + " " + this.lastname + "!!!!"
      );
      console.log("Nice to meet you!");
    }
  
    tellAge() {
      console.log("I'm " + this.age + " years old!");
    }
  }
  