تست کد تایپ اسکریپت

interface User { name: string; age: number; } function sayHello(user: User): void { let nextYearAge = user.age + 1; console.log(`سال بعد ${user.name} ${nextYearAge} ساله میشه.`); } let user: User = { name: "علی", age: "بیست" };