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- JavaScript
- Ruby
- Python
- Java
- CoffeeScript
- PHP
- Rust
- C
- OCaml (Beta)
- Scala
- Haskell
- C#
- R (Beta)
- Objective-C (Beta)
- Go
- Factor (Beta)
- C++
- Elixir
- TypeScript
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- Clojure
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- Julia (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.