A Collection of the Worst Code Snippets: Lessons from Bad Code

The author reflects on the universal experience of writing code one is not proud of and gathers a series of the worst code snippets found online, inviting readers to view them with a light‑hearted attitude.

Reinventing the Wheel Wrongly

A simple boolean comparison fails to return the expected result, prompting the suggestion to create a custom solution.

Magic Numbers

The image asks what would happen if one of the numbers were changed, hinting at the dangers of hard‑coded values.

At Least It’s Split Into Several Lines

The code appears to be from a school project, prompting sympathy for the teacher.

The Devil Is Also a Function

Various implementations of an isEven function are presented as the first candidate for discussion.

Hope for a Function to Get String Length

A developer quickly implements a function to obtain a string’s size.

Awakening the Inner Child

Using emojis as variable names is shown, leaving readers to decide if it’s appropriate.

Who Is Reading the Commit Messages?

A colleague repeatedly uses the same commit message, suggesting a possible reason.

If Any of These Changes

Reasons to Buy an Ultra‑Wide Monitor

Long variable names are defended for readability, prompting the question of how long is too long.

Genius Move

A comment is presented as self‑explanatory.

Typography Is Best

Discussion about type safety and how to avoid type errors.

If It Works, It Works

Emphasis on ensuring the sum of parameters always equals seven so the function never fails.

Ensuring It Is a Real Bool

Questioning how pessimistic is too pessimistic, implying a near‑perfect boolean implementation.

Test‑Driven Best Development Method

Advocates unit testing while questioning what happens if tests generate random numbers.

Do You Dare to Extend?

Comments on writing overly long switch statements with many cases.

Try the Switch Statement

Speculates about future plans to expand the switch statement.

Math Is Hard

Notes that using external help (libraries) is not shameful, mentioning over 150,000 weekly downloads.

When Brilliant Ideas Flow

Encourages rebellious thinking but warns that such code should not pass code review.

When You Are a Coder but Your Passion Is Calligraphy

Experiments with different fonts, questioning if “pirated software writes like this”.

Final Thoughts

The author hopes readers enjoy the examples, invites feedback on favorite snippets, and encourages sharing of embarrassing code screenshots.

Reflecting on personal experiences, the author admits to having written shameful code in the past but feels fortunate that no one has captured screenshots of those moments.