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