challenge.ts

interface User {
    name:string,
    age?: number,
    birthday?: string,
}

const prettyPrintWilder = (users:User[]):void => {
    console.log("########################");
    users.map((el:User) => {
      console.log(`${el.name} is ${el.age} years old`);
    });
    console.log("########################");
  };
  const wilders:User[] = [];
  const user1:User = { name: "Pierre", age: 23 };
  const user2:User = { name: "Paul", birthday: "10/02/1990" };
  const user3:User = { name: "Jacques", age: 25 };
  wilders.push(user1);
  wilders.push(user2);
  wilders.push(user3);
 const result = prettyPrintWilder(wilders);

//  le type de retour est void