TypeScript Basics

gistfile1.txt

// Typage proposé par typescript:
// users: any[]

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

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