In-depth engineering tutorials, architecture explainers, and real-world code guides designed for clarity and depth.
Explore foundational engineering pillars
You’ve finished a change, committed it, and moved on—then you notice the branch name. The commit went to the wrong branch. It’s a frustrating mistake, but you usually don’t need to copy your files or redo your work. You can move the commit to the branch where it belongs, then clean up the original branch safely.
The Open/Closed Principle states: Software entities should be open for extension, but closed for modification.
In this article, we'll focus on the first principle: Single Responsibility Principle. The Single Responsibility Principle is commonly expressed as: A class should have one, and only one, reason to change.
SOLID is an acronym that represents five software design principles. These principles are mainly associated with object-oriented programming (OOP), where we organize applications using classes and objects.
Imagine opening a newspaper where every article, headline, and paragraph is printed in the same font size, without any clear separation. Finding the information you're interested in would be quite difficult, wouldn't it?
Have you ever wondered why almost every HTML document begins with the following line?
A good place to start, chosen from the published archive.
Follow connected lessons through a topic, one idea at a time.
# Learn by building understanding
01 Choose a series that sparks your curiosity.
02 Read each lesson at your own pace.
03 Carry the ideas into your next project.
A guided route through related articles.
