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