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- JavaScript
- C#
- Java
- CoffeeScript
- Python
- Elixir
- PHP
- Ruby
- C
- TypeScript
- Haskell
- Racket
- COBOL (Beta)
- Scala
- C++
- Crystal
- NASM
- Prolog (Beta)
- CFML (Beta)
- Factor (Beta)
- PowerShell (Beta)
- R (Beta)
- Julia (Beta)
- Rust
- RISC-V (Beta)
- Lua
- Dart
- Kotlin
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- Swift
- Go
- Reason (Beta)
- Clojure
- D (Beta)
- OCaml (Beta)
- Groovy
- Elm (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.