Aug 20, 2026 · 7 min · 7 segments
Documentation and comments are two closely related practices that make your code understandable, maintainable, and reusable by yourself and by others. After learning to write loops, conditions, and…
Documentation and comments are two closely related practices that make your code understandable, maintainable, and reusable by yourself and by others.
After learning to write loops, conditions, and functions, you now need to learn how to explain what your code does and why it does it.
Writing working code is only half the job of a professional developer.
The other half is making sure that code can be read, understood, corrected, and improved months or years later, whether by you or by a colleague who has never seen your work before.
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Documentation and comments are two closely related practices that make your code understandable, maintainable, and reusable by yourself and by others.
After learning to write loops, conditions, and functions, you now need to learn how to explain what your code does and why it does it.
Writing working code is only half the job of a professional developer.
The other half is making sure that code can be read, understood, corrected, and improved months or years later, whether by you or by a colleague who has never seen your work before.
