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- JavaScript
- Clojure
- Ruby
- Python
- CoffeeScript
- C#
- Java
- Haskell
- Elixir
- Swift
- PHP
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- Scala
- C
- Julia (Beta)
- Rust
- Prolog (Beta)
- Pascal (Beta)
- COBOL (Beta)
- C++
- TypeScript
- Crystal
- Go
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- Factor (Beta)
- D (Beta)
- NASM
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- Shell
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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.