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- Haskell
- F#
- C
- C++
- Go
- OCaml (Beta)
- Ruby
- CoffeeScript
- JavaScript
- Python
- Racket
- Elixir
- Dart
- NASM
- COBOL (Beta)
- SQL
- Scala
- PHP
- TypeScript
- Crystal
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- Clojure
- Java
- Julia (Beta)
- R (Beta)
- Rust
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.