Learn Polymorphism — a key concept for LLD interviews.
Interactive — Try it yourself!
How to use
1Click any animal (Dog, Cat, Duck, Cow, Lion)
2Watch: same method makeSound() — but different output!
3Click "Call makeSound() on ALL" — see all 5 behave differently
4Read the console output — same function call, different results
In a nutshell
Polymorphism means "many forms". Same method name (makeSound), different behavior depending on the object. The code calls animal.makeSound() without knowing if it's a Dog or Cat — the runtime decides which version to run.