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