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TOPIC OVERVIEW

typescript/Type aliases

Give complicated types a name so your code becomes easier to understand and reuse.

12 QuestionsBeginnerHigh Priority ~8 min read

A type alias lets you create your own name for a TypeScript type. Instead of repeatedly writing a complicated object shape, you can define it once and use its name everywhere.

Type aliases can describe objects, unions, tuples, function types, and other combinations. They help make larger TypeScript applications easier to read and maintain.

What you'll walk away knowing

How to create and reuse custom types
How type aliases work with objects and functions
How to create union and tuple types
When to use a type alias instead of repeating a type
1What are type aliases?Intermediate2How do you define types in TypeScript?Intermediate3How to extend types?Intermediate
All Topics
1
Basics
Literal Types
Type aliases
Objects
2
Classes
Interfaces
Enums
Functions
3
Type Guards
Generics
4
Commands and Packages
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