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- JavaScript
- Ruby
- C#
- Python
- Haskell
- CoffeeScript
- Java
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- PHP
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- Julia (Beta)
- Dart
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- Go
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- Elm (Beta)
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- R (Beta)
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- Lua
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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.