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- JavaScript
- Python
- C#
- C
- Ruby
- Haskell
- Crystal
- C++
- PHP
- Java
- NASM
- Julia (Beta)
- Racket
- TypeScript
- R (Beta)
- CoffeeScript
- Prolog (Beta)
- Nim (Beta)
- Scala
- Clojure
- Rust
- Go
- Elixir
- Lua
- F#
- Dart
- COBOL (Beta)
- D (Beta)
- RISC-V (Beta)
- Groovy
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- Swift
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- Shell
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- Pascal (Beta)
- Perl (Beta)
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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.