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- JavaScript
- Java
- C#
- Python
- Ruby
- C
- C++
- TypeScript
- Haskell
- Clojure
- CoffeeScript
- PHP
- Julia (Beta)
- NASM
- Crystal
- COBOL (Beta)
- Factor (Beta)
- F#
- Scala
- Rust
- Swift
- R (Beta)
- Shell
- Objective-C (Beta)
- OCaml (Beta)
- Go
- Nim (Beta)
- Racket
- Reason (Beta)
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- Prolog (Beta)
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- Dart
- Lua
- Perl (Beta)
- Elm (Beta)
- D (Beta)
- Erlang (Beta)
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.