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- Java
- JavaScript
- Python
- Ruby
- CoffeeScript
- C
- C#
- NASM
- PHP
- Haskell
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- Dart
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- Julia (Beta)
- COBOL (Beta)
- TypeScript
- D (Beta)
- Scala
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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.