A public list collects open-source frontend coding challenges from companies for testing development skills.
Open source
24 alternativesType Challenges
Type Challenges offers TypeScript type exercises with an online judge.
About Type Challenges
Type Challenges is an open-source collection of TypeScript type exercises with an online judge. It focuses on understanding the type system and writing type utilities.
Challenges are organized by difficulty and work in strict mode. Real-world questions from the community can become part of the challenges.
Key features
- Type-system exercises checked by an online judge
- Challenges organized from warm-up to hard difficulty
- Exercises run in TypeScript strict mode
- Community questions can become new challenges
- Readme versions in English, Chinese, Japanese, Korean, Portuguese
- References to type utility libraries such as type-fest
Best for: Best for TypeScript users who want to practice writing and understanding types.
Good for
- Open-source collection
- Covers multiple difficulty levels
- Readme available in multiple languages
Watch out for
- Challenges work in strict mode
Type Challenges at a glance
- Category
- Education & Learning › Learn to Code
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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