I'm currently learning JavaScript and practicing some code, but I'm getting a bit confused about how object destructuring works. Below is the code snippet I'm working with:

const person = {
  name: "Harmeet",
  age: 40
}

const { name, age} =  person;

console.log(name); // prints Harmeet
console.log(age); // prints 40

const {anotherName, anotherAge} = person;

console.log(anotherName); // prints undefined
console.log(anotherAge); // prints undefined

Could someone explain how the object destructuring is working in this context? Specifically, I'm confused about during the second time assignment, why object descrtion prints undefined instead of values? Any detailed explanation or examples would be greatly appreciated!