Learn Common LLD Mistakes — a key concept for LLD interviews.
Interactive — Try it yourself!
How to use
1See 5 "Spot the Bug" code snippets one at a time
2Choose from 3 options to identify each OOP mistake
3Mistakes include: God class, wrong inheritance, tight coupling
4Track your score — aim for 5/5!
In a nutshell
Common LLD mistakes: jumping to code without requirements, God classes doing too much, wrong inheritance (Square extends Rectangle), missing encapsulation, tight coupling. Avoid these and you'll stand out.