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- Ruby
- JavaScript
- Python
- C#
- Haskell
- CoffeeScript
- R (Beta)
- COBOL (Beta)
- Rust
- Factor (Beta)
- C++
- Java
- λ Calculus (Beta)
- TypeScript
- PHP
- Scala
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- C
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- Julia (Beta)
- Go
- Clojure
- BF (Beta)
- Elixir
Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.