TypeScript Interview - Beginner Level
Perfect for developers with 0-2 years of TypeScript experience. Master type basics, interfaces, type inference, and essential TypeScript fundamentals.
15-20 minutes
0-2 years of TypeScript experience
Who is this for?
JavaScript developers learning TypeScript
Developers new to TypeScript
Students learning typed languages
Anyone preparing for junior TypeScript roles
What you'll practice
Understanding what TypeScript is and its benefits
Working with basic types (string, number, boolean)
Creating interfaces and type aliases
Using type inference effectively
Writing typed functions
Compiling TypeScript to JavaScript
Topics covered
TypeScript Basics
What is TypeScript and why use it
Basic types (primitives)
Arrays and tuples
Type annotations
Interfaces & Types
Interface basics
Type aliases
Optional properties
Readonly properties
Functions
Function type annotations
Return types
Optional parameters
Type inference in functions
Compilation
Compiling TypeScript
tsconfig.json basics
Type checking
JavaScript compatibility
Example questions
Q:
What is TypeScript and what are its main benefits?
Q:
How do you define a type for a function parameter?
Q:
What is the difference between interface and type alias?
Q:
How does type inference work in TypeScript?
Q:
What are optional properties and how do you use them?
Q:
How do you compile TypeScript to JavaScript?
Preparation tips
Understand benefits of static typing
Practice writing typed functions
Learn interface and type alias syntax
Set up a TypeScript project with tsconfig.json
Compile TypeScript and check for errors
Convert simple JavaScript to TypeScript
Continue your journey
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