What are some common code smells I should avoid in my programming?

What are some common code smells I should avoid in my programming?

Common code smells include duplicated code, long methods, large classes, and excessive comments. Would you like to know more about any specific one?

Can you explain what duplicated code is?

Duplicated code occurs when the same code structure is repeated in multiple places. It makes maintenance harder and increases the risk of bugs.

How can I refactor duplicated code?

You can refactor duplicated code by extracting it into a separate method or function, which can then be reused wherever needed.

What about long methods? Why are they a problem?

Long methods can be difficult to understand and maintain. They often indicate that the method is doing too much, which violates the Single Responsibility Principle.