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TypeScript Interview Questions & Answers · IT Interview Practice
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TypeScript
Curated TypeScript interview questions with detailed answers.
30
questions
updated weekly
Junior
10
Middle
12
Senior
8
TypeScript questions
10 / 30 shown
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›
What is structural typing in TypeScript?
Junior
#Types
Details →
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What is the difference between any and unknown?
Junior
#Types
Details →
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What is the difference between interface and type?
Junior
#Types
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What are union and intersection types?
Junior
#Types
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What are enums and when should you use them?
Junior
#Types
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What are type assertions and when are they risky?
Junior
#Types
#Type Narrowing
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How do you annotate variables, parameters and return types?
Junior
#Types
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How does type inference work?
Junior
#Types
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How do you type functions, including optional and default parameters?
Junior
#Types
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What do the optional (?) and readonly modifiers do?
Junior
#Types
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