Every line of code is a message to the next engineer — and that engineer is often yourself six months later. Readable code is not a luxury; it is a professional obligation.
Naming Is Thinking
The moment you struggle to name a function, you are discovering that you have not yet understood what it does. A good name is a compressed design decision. getUserData() tells me nothing; fetchActiveSubscriberProfile(userId) tells me everything.
The Single Responsibility Principle, Revisited
Functions and modules that do one thing are easy to name, easy to test, and easy to replace. The discipline of small functions is not pedantry — it is the foundation of maintainable systems.
Comments That Add Value
Avoid comments that restate the code. Instead, document the why: the business rule, the edge case, the external constraint that forced a particular approach. Future readers will thank you.
Consistency as Courtesy
A consistent style — even an imperfect one — is easier to navigate than a clever one. Follow your team’s conventions. When there are none, establish them, and write them down.
Readable code is a form of respect: for your colleagues, for your future self, and for the craft itself.