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- JavaScript
- CoffeeScript
- PHP
- Python
- TypeScript
- Crystal
- Ruby
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- Java
- Clojure
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- Dart
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- Factor (Beta)
- C
- Shell
- PowerShell (Beta)
- VB (Beta)
- Go
- COBOL (Beta)
- Rust
- D (Beta)
- BF (Beta)
- F#
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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.