const Person = {
firstName: string,
lastName: string,
age: number,
};
function greetPerson(person) {
const { firstName, lastName, age } = person;
return `Hello, ${firstName} ${lastName}! You are ${age} years old.`;
}
function isAdult(person) {
return person.age >= 18;
}
const john = { firstName: "John", lastName: "Doe", age: 25 };
console.log(greetPerson(john));
console.log(isAdult(john));