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- JavaScript
- CoffeeScript
- Ruby
- Python
- Haskell
- C#
- PHP
- TypeScript
- Swift
- C++
- R (Beta)
- Nim (Beta)
- Go
- Elixir
- Lua
- Scala
- Clojure
- Kotlin
- F#
- C
- CommonLisp (Beta)
- Dart
- Rust
- OCaml (Beta)
- Java
- NASM
- CFML (Beta)
- Crystal
- Prolog (Beta)
- COBOL (Beta)
- Solidity (Beta)
- Factor (Beta)
- D (Beta)
- Julia (Beta)
- Groovy
- Objective-C (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.