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- JavaScript
- CoffeeScript
- Clojure
- Python
- Java
- Ruby
- Haskell
- C#
- Crystal
- Dart
- PHP
- Nim (Beta)
- Rust
- Groovy
- Scala
- C++
- Go
- Racket
- TypeScript
- R (Beta)
- Prolog (Beta)
- NASM
- Swift
- CFML (Beta)
- Julia (Beta)
- Elixir
- Perl (Beta)
- COBOL (Beta)
- C
- D (Beta)
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- OCaml (Beta)
- SQL
- BF (Beta)
- Lua
- Kotlin
- Reason (Beta)
- RISC-V (Beta)
- F#
- Shell
- Solidity (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.