Khanittha von Mutius’ Post

Building better coding habits with Exercism (tests + mentoring) Recently, I’ve been looking for a way to practice coding that goes beyond “solving a problem and moving on.” I wanted something that builds real coding discipline — the kind that translates to day-to-day engineering work. That’s how I found Exercism. I started using it as a simple routine (1 exercise/day), and what stood out is that it doesn’t feel like practice in isolation. With test cases + mentor code reviews, the workflow feels closer to real development 🧪👀 A lot of us can finish exercises… but still wonder: Was my solution actually good? ✅ Exercism helped me think more about quality, not only correctness. Why Exercism feels different from typical coding platforms: 1) Full test suite from the start 🎯 No guessing — the tests tell you. It trains the habit of meeting requirements, not just passing a few sample cases. 2) Concepts taught step by step 🧩 From strings/loops/arrays → functional programming, concurrency, performance. 3) Mentoring focuses on code quality 🧑🏫✨ Feedback on readability, naming, structure, and edge cases — like real-world reviews. 4) Community solutions = multiple perspectives 🌍🔎 A reminder that “shorter” doesn’t always mean “better.” Some prioritize clarity, some functional style, some speed. A mode many people overlook: Concept Exercises 🧠 Structured, lesson-style exercises that build fundamentals — great for learning a new language or rebuilding your foundation. How it works (language-agnostic): 🧾 ✅ You get a function/task ✅ Take an input ✅ Return an output based on rules ✅ Tests validate normal + edge cases (empty input, negative numbers, unusual characters) Who it’s best for: ✅ Structured practice without getting lost 🧭 ✅ Clear ways to improve code quality 🛠️ ✅ Feedback without waiting for workplace reviews ⏳ Start here: https://exercism.org/ If you’re starting today: 1 exercise per day → ✅ make tests pass + 🧼 refactor once for readability. Any good alternatives to Exercism for code quality + learning from others’ solutions? #SoftwareEngineering #CodingPractice #CleanCode #Backend #Learning #Java

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