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- Ruby
- JavaScript
- CoffeeScript
- Python
- Haskell
- C#
- Java
- Pascal (Beta)
- C
- COBOL (Beta)
- TypeScript
- Julia (Beta)
- Clojure
- Elixir
- C++
- PHP
- Crystal
- F#
- Shell
- OCaml (Beta)
- Kotlin
- NASM
- R (Beta)
- PowerShell (Beta)
- Go
- Nim (Beta)
- Rust
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- Racket
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- Scala
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- Dart
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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.