tsapp1/src/user.ts


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interface User {
  name: string;
  id: number;
}
 
class UserAccount {
  name: string;
  id: number;
 
  constructor(name: string, id: number) {
    this.name = name;
    this.id = id;
  }
}
 
const user: User = new UserAccount("Kyle", 1);
console.log("username is %s and userid is %d", user.name, user.id);