//création de la classe

class Person {
    constructor(name, age){
        this.name = name ;
        this.age = age ;
    }
    tellMyName(){
        console.log(`I am ${this.name}`);
    }
    tellMyAge(){
        console.log(`I am ${this.age} years old.`);
    }
}

//instance des 2 personnes

const John = new Person ('John',40);
const Mary = new Person ('Mary', 35);

John.tellMyName();
John.tellMyAge();
Mary.tellMyName();
Mary.tellMyAge();