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Quiz: TypeScript: Code review

50 questions. Each answer is checked when you pick it, with an explanation.

• Type narrowing and type guards — 9 questions
• Generics — 4 questions
• Classes and access modifiers — 3 questions
• Asynchrony: Promise, async/await, parallelism — 7 questions
• Modules and tsconfig — 2 questions
• JS traps: numbers and money, strings, dates, objects and arrays — 25 questions