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Train NowChoose Language...
- Python
- R (Beta)
- Crystal
- JavaScript
- Ruby
- C#
- Scala
- Go
- Elixir
- Haskell
- Factor (Beta)
- PHP
- Julia (Beta)
- Rust
- C
- D (Beta)
- Dart
- Lua
- CoffeeScript
- Kotlin
- TypeScript
- COBOL (Beta)
- Perl (Beta)
- Swift
- SQL
- Groovy
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.