Collection of TypeScript type challenges

English | Jian Ti Zhong Wen | Ri Ben Yu | hangugeo

by the power of TypeScript's well-known Turing Completed type system

High-quality types can help improve projects' maintainability while avoiding potential bugs.

There are a bunch of awesome type utility libraries that may boost your works on types, like ts-toolbelt, utility-types, SimplyTyped, etc., which you can already use.

This project is aimed at helping you better understand how the type system works, writing your own utilities, or just having fun with the challenges. We are also trying to form a community where you can ask questions and get answers you have faced in the real world - they may become part of the challenges!

Click the following badges to see details of the challenges.

Upcoming challenges

Start the challenge in TypeScript Playground

Start the challenge in VS Code

• The TypeScript Handbook

  • Unions and Intersection Types
  • Literal Types
  • Utility Types
  • Advanced Types

• The New Handbook

• Learn Advanced TypeScript Types
• The Art of Type Programming
• Type Query: jQuery Style Type Manipulation

• Type Level Programming in Typescript

• Type Gymnastics
• Type Challenges Solutions
• TypeType Examples

• Effective TypeScript
• Learning TypeScript

TODO

There are several ways you can contribute to this project

• Share your answers / solutions
• Propose new challenges
• Add more test cases to the existing challenges
• Provide learning resources or ideas of how to solve challenges
• Share the problems you have faced in real-world projects, regardless you having the solution or not - the community would help you as well
• Help with others by discussion in issues
• Contribute the infra of this project TODOs.md

Just open an issue and choose the corresponding template. Thanks!

This project was born from solving real-world types problem with @hardfist and @MeCKodo. And great thanks to @sinoon who contributed a lot while giving early feedback on this project.

• piotrwitek/utility-types
• psmyrdek/typescript-challenges
• andnp/SimplyTyped

MIT