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- JavaScript
- C#
- Python
- Ruby
- PowerShell (Beta)
- Java
- Clojure
- C++
- Swift
- Go
- Haskell
- Elixir
- C
- COBOL (Beta)
- Rust
- λ Calculus (Beta)
- Kotlin
- Scala
- Shell
- R (Beta)
- PHP
- CoffeeScript
- PureScript (Beta)
- TypeScript
- Julia (Beta)
- F#
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- D (Beta)
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- Lua
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- Pascal (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.