Clean Code Principles Every Developer Should Know
Clean Code Principles Every Developer Should Know
Naming, functions, and structure habits that keep codebases maintainable.
Clean code is easy to read, change, and test. Flesh out each principle with your own examples.
Overview
Use intention-revealing names.
Small, Focused Functions
Each function should do one thing well.
Key Points
- Name things by intent.
- Keep functions short and single-purpose.
- Avoid duplication (DRY).
Comments & Tests is where most of the wins hide.
Placeholder pullquote
📐 Step-by-Step Blueprint
- Name things by intent.
- Keep functions short and single-purpose.
- Avoid duplication (DRY).
- Comment the 'why', not the 'what'.
- Cover behaviour with automated tests.
Do
Meaningful Names: keep it focused and intentional.
Avoid
Shortcuts and spam that hurt long-term results.
Placeholder quote about programming — swap in a real source.
Author Name
At a Glance
| Step | Notes |
|---|---|
| Name things by intent. | Notes for: Name things by intent. |
| Keep functions short and single-purpose. | Notes for: Keep functions short and |
| Avoid duplication (DRY). | Notes for: Avoid duplication (DRY). |
| Comment the 'why', not the 'what'. | Notes for: Comment the 'why', not t |
| Cover behaviour with automated tests. | Notes for: Cover behaviour with aut |
Example
# Before
def d(x): return x*86400
# After
def days_to_seconds(days):
return days * SECONDS_PER_DAYPreformatted text keeps spacing and line breaks exactly as typed.
Plan the work, work the plan, then measure what you can.