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