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- JavaScript
- Ruby
- Python
- Haskell
- Factor (Beta)
- C++
- OCaml (Beta)
- Shell
- Elixir
- C#
- C
- Crystal
- NASM
- PureScript (Beta)
- Rust
- R (Beta)
- COBOL (Beta)
- Scala
- CoffeeScript
- Java
- Go
- PHP
- Objective-C (Beta)
- Clojure
- Kotlin
- VB (Beta)
- D (Beta)
- BF (Beta)
- Julia (Beta)
- TypeScript
- Lua
- Dart
- Swift
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.