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- JavaScript
- Crystal
- Python
- Ruby
- Java
- C
- BF (Beta)
- C#
- Rust
- NASM
- C++
- TypeScript
- CoffeeScript
- Elixir
- Julia (Beta)
- Dart
- PHP
- Reason (Beta)
- Haskell
- Racket
- R (Beta)
- Factor (Beta)
- PureScript (Beta)
- Go
- Clojure
- Forth (Beta)
- Elm (Beta)
- Swift
- COBOL (Beta)
- OCaml (Beta)
- Lua
- Scala
- SQL
- D (Beta)
- Solidity (Beta)
- Shell
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.