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- C#
- Python
- Ruby
- CoffeeScript
- Elixir
- JavaScript
- Haskell
- Prolog (Beta)
- Julia (Beta)
- Java
- Crystal
- TypeScript
- C++
- C
- COBOL (Beta)
- Go
- NASM
- Lua
- Rust
- D (Beta)
- PHP
- Scala
- RISC-V (Beta)
- Dart
- Objective-C (Beta)
- Clojure
- VB (Beta)
- Factor (Beta)
- BF (Beta)
- Kotlin
- R (Beta)
- λ Calculus (Beta)
- Groovy
- Swift
- F#
- Pascal (Beta)
- Forth (Beta)
- Racket
- Reason (Beta)
- OCaml (Beta)
- Nim (Beta)
- Erlang (Beta)
- SQL
- CFML (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.