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- Python
- Java
- JavaScript
- Ruby
- Haskell
- C#
- Crystal
- TypeScript
- Elm (Beta)
- Julia (Beta)
- Prolog (Beta)
- Swift
- Elixir
- C
- NASM
- COBOL (Beta)
- C++
- R (Beta)
- CoffeeScript
- PHP
- F#
- D (Beta)
- Rust
- Scala
- Clojure
- Dart
- Factor (Beta)
- Go
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- Shell
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- Kotlin
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- PowerShell (Beta)
- Reason (Beta)
- Racket
- Pascal (Beta)
- Lua
- Perl (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.