Pure FunctionsĪ pure function is a method that does not depend on an external mutable state. This is particularly useful when refactoring, because you can still tell if the new code correctly implements the required behavior of the old code without having to update your behavior tests. BDD tests the actual behavior of the code. However, TDD tends to rely too much on a developer's specific implementation, which is why it's often used together with Behavior-Driven Development (BDD). TDD forces the developer to write code that is easy to test, i.e. Because of that, a test-first approach enforces the good design of code. A test can be thought of as a user of the eventual code. But I particularly like TDD because it introduces a user for the code that will be written. There are many reasons why you would want to write a test before you write the code: verifiability, preventing regression, better documentation, etc.

While this list is by no means exhaustive - entire books have been written on the topic - I focused on the programming practices that have had the biggest impact on the code I write.

The goal of this blog post is to list a few programming best practices to improve how you write code. This is why developers need to constantly find and learn new ways to write better code. Code should be written in such a way that it's maintainable, robust, verifiable, and readable. There's more to writing code than creating apps that fulfill requirements.

Code writing programs