Katas

const MasteryTracker = ( userId, kataId ) => const [history, setHistory] = useState([]); // Log each attempt with timestamp and score const logAttempt = (score) => const newAttempt = date: new Date(), score ; setHistory([...history, newAttempt]); // Update user's mastery level based on 3+ successful attempts ;

const KataCard = ( kata, onSelect ) => ( <div className="kata-card" onClick=() => onSelect(kata.id)> <h3>kata.name</h3> <span className=`difficulty $kata.difficulty`>kata.difficulty</span> <p>kata.description.slice(0, 80)...</p> <div className="stats"> <span>✅ kata.completions</span> <span>⭐ kata.averageRating</span> </div> </div> ); Where the user actually performs the kata. const MasteryTracker = ( userId, kataId ) =&gt;

const KataPlayer = ( kata, onSubmit ) => ""); const [result, setResult] = useState(null); const runTests = () => // Run against kata.testCases const passed = kata.testCases.every(test => eval(userCode)(test.input) === test.expected ); setResult(passed ? "✅ Perfect form" : "❌ Try again"); if (passed) onSubmit(kata.id); ; const MasteryTracker = ( userId