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