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