Category "code-duplication"

Seeing no way to avoid (deeper) inheritance tree without producing code duplication

I am rather new to OOP and I can't wrap my head around a problem I have frequently encountered by now. I hope, I understand the reasoning behind why composition

How to avoid duplicate JS code that each uses its own this? [duplicate]

I have several different classes with the same duplicate code. Aside from the different identity of each's this, these duplicate code are all

How to set up SonarQube code duplication by folder or group of projects and not for the whole Solution in a single Azure DevOps repository?

In our product stack, we have an intricate projects structure. There is a main app that is responsible for core functions (routing, auth, etc.) and there are su