how to declare a clas in js code example

Example 1: javascript create class

class Person {
 constructor(name, age) {
   this.name = name;
   this.age = age;
 }
  present = () => { //or present(){
  	console.log(`Hi! i'm ${this.name} and i'm ${this.age} years old`) 
  }
}
let me = new Person("tsuy", 15);
me.present();
// -> Hi! i'm tsuy and i'm 15 years old.

Example 2: javascript classes

class SayHelloTo {
  name (to) {
    console.log(`Hello ${to}`);
  }
  constructor (to) {
    this.name(to);
  }
}
const helloWorld = new SayHelloTo(World);