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- Haskell
- JavaScript
- Ruby
- CoffeeScript
- Python
- Java
- C#
- Dart
- TypeScript
- C++
- Scala
- C
- Julia (Beta)
- Elixir
- CommonLisp (Beta)
- COBOL (Beta)
- R (Beta)
- Crystal
- PHP
- Rust
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- D (Beta)
- F#
- λ Calculus (Beta)
- Groovy
- Clojure
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- Factor (Beta)
- NASM
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- Shell
- PowerShell (Beta)
- Racket
- Prolog (Beta)
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- VB (Beta)
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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.