How to handle null and undefined in TypeScript
· TypeScript
Use strict null checks, optional chaining, and nullish coalescing to safely manage absent values in TypeScript.
Category: TypeScript
40 questions in TypeScript.
What is type assertion in TypeScript
· TypeScript
Learn how to override TypeScript inference using type assertions when you know more about a value than the compiler.
How to use union and intersection types
· TypeScript
Combine types flexibly using union types for or relationships and intersection types for and relationships.
What is type inference in TypeScript
· TypeScript
Understand how TypeScript infers types automatically and when you still need explicit annotations.
How to compile TypeScript to JavaScript
· TypeScript
Learn how to install the TypeScript compiler, configure it, and transpile TypeScript files to JavaScript.
What are basic types in TypeScript
· TypeScript
Explore the primitive and common built-in types available in TypeScript including string, number, boolean, array, and tuple.
How to use enums in TypeScript
· TypeScript
Learn how to define numeric and string enums in TypeScript and understand their compiled output.
What is the difference between type and interface
· TypeScript
Compare TypeScript type aliases and interfaces to decide which to use for your shapes and contracts.
How to define types in TypeScript
· TypeScript
Master the basics of defining variables, functions, and objects with explicit types in TypeScript.
What is TypeScript and why use it
· TypeScript
Learn what TypeScript is, how it extends JavaScript with static types, and why teams adopt it for large codebases.