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- JavaScript
- C#
- CoffeeScript
- Python
- Ruby
- Java
- Haskell
- Julia (Beta)
- Dart
- PHP
- TypeScript
- C++
- C
- Crystal
- Elixir
- Clojure
- Lua
- COBOL (Beta)
- Factor (Beta)
- Rust
- R (Beta)
- RISC-V (Beta)
- Fortran (Beta)
- NASM
- Nim (Beta)
- D (Beta)
- Go
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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.