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