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- JavaScript
- Python
- Ruby
- C++
- Clojure
- C#
- Java
- C
- Julia (Beta)
- Prolog (Beta)
- Rust
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- Haskell
- TypeScript
- Lua
- F#
- Go
- Groovy
- PHP
- COBOL (Beta)
- Scala
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- NASM
- Elixir
- Swift
- Pascal (Beta)
- Crystal
- Factor (Beta)
- D (Beta)
- Dart
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- Racket
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- λ Calculus (Beta)
- CommonLisp (Beta)
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- RISC-V (Beta)
- Perl (Beta)
- Shell
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- Solidity (Beta)
- VB (Beta)
- PowerShell (Beta)
- PureScript (Beta)
- Forth (Beta)
- SQL
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- BF (Beta)
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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.