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