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- JavaScript
- Ruby
- CoffeeScript
- Haskell
- Python
- Clojure
- Java
- Elixir
- Rust
- C#
- TypeScript
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- PHP
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- Dart
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- Julia (Beta)
- Reason (Beta)
- R (Beta)
- Perl (Beta)
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- Swift
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- D (Beta)
- Go
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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.