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