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- JavaScript
- Python
- CoffeeScript
- C#
- C++
- Ruby
- Java
- TypeScript
- Haskell
- Clojure
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- C
- Swift
- F#
- OCaml (Beta)
- Fortran (Beta)
- Scala
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- R (Beta)
- Go
- Nim (Beta)
- Racket
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- Lua
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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.