A curated collection of JavaScript's unexpected behaviors, type coercion quirks, and language edge cases.

GO-JEK's Code Challenges + Quizzes at GopherCon 🐵 💻 🌮

Codes that are more Logical then You think, and complete in just 1 or 2 Lines of Code.

Timed multiple choice coding quiz that saves scores to local storage.

These are answers to some questions that I have come across. A mix of LeetCode and HackerRank questions.

A coding quiz challenge on JavaScript fundamentals.

Vibecoding mini projects

Coding Master AI — a C# (WinForms) desktop app that tests and improves your programming skills with AI-generated questions (Google Gemini) across C++, C#, Java, and Python, featuring user accounts, a live rankings leaderboard, an admin panel, and a MySQL backend.

A timed quiz app that utilizes dynamically created HTML via JavaScript. Users have a minute to answer multiple questions, incorrect answers will result in a ten second penalty. Mobile friendly!

🧭 Find your perfect coding track in 10 questions. Built for Mimo Code Playground.

QuizCraft - Quiz App for Programmers

Solutions to code quizzes found on codility and hackerrank.

🧩 Explore JavaScript's quirkiest behaviors and edge cases, helping developers master the language and avoid pitfalls in production.