Why the first instruction we learn to program should be the last to use. Nobody uses GOTO instruction anymore and few programming languages still support it. We have matured and confirmed spaghetti code is unmaintainable and error prone. Structured Programming solved that problem years ago. We got rid of the…

The code smells bad. Let’s see how to change the aromas. — TL;DR: A Compilation of bad smells in code. In this series, we will see several symptoms and situations that make us doubt the quality of our developments. We will present possible solutions. Most of these smells are just clues of something that might be wrong. They are not rigid rules. Code Smells Code Smell 01 — Anemic Models Your objects are a bunch of public attributes without behavior.medium.com

On Error resume next was the first thing I learned in my first job — TL;DR: Don’t avoid exceptions. Handle Them. Problems Fail Fast Principle Violation Solutions Catch the exception and deal with it explicitly Context On early programming days, we privileged the systems running before error handling. We have evolved. Sample Code Wrong # bad import logging def send_email(): print("Sending email") raise ConnectionError("Oops")

Tabs vs Spaces. The most significant computer problem — TL;DR: Don’t mix indentation styles Problems Readability Code consistency Standards violation Solutions Choose one of them Stick to it Enforce it with code standards tests Share the rules on all the codebase Use an IDE like VS Code or WebStorm that doesn’t include tabs at all. Context Whenever I publish an article many…

Have you ever seen a CustomerCollection? — TL;DR: Don’t use ‘collection’ in your name. It is too abstract for concrete concepts. Problems Readability Abstraction Abuse Bad Naming Solutions Rename the collection with a specific name. Context Naming is very important. We need to deal a lot with collections. Collections are amazing since they don’t need nulls to model the absence. …

We keep practicing this amazing Kata and learning. You can follow the steps! — TL;DR: Javascript is also awesome for TDD During January 2022 Wordle rush, I wrote an article describing how to create a Wordle with TDD using PHP. How to Develop a Wordle Game using TDD in 25 Minutes Developing a complete Wordle Game is very easy with TDDblog.devgenius.io A few months after, I transcribed the UI version of a Wordle created with Codex Artificial Intelligence.

Parentheses are free of charge. Aren’t they? — TL;DR: Use as few parentheses as possible. Problems Readability Syntactic complexity Solutions Remove all not necessary parentheses Context We read code from left to right (at least in western culture). Parentheses often break this flow, adding cognitive complexity Sample Code Wrong schwarzschild = ((((2 * GRAVITATION_CONSTANT)) * mass) / ((LIGHT_SPEED ** 2)))