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- JavaScript
- Python
- Ruby
- C#
- CoffeeScript
- Haskell
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- TypeScript
- PHP
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- Go
- Java
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- NASM
- Crystal
- Groovy
- Scala
- Kotlin
- OCaml (Beta)
- Swift
- Rust
- Racket
- Julia (Beta)
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- Reason (Beta)
- Dart
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- Clojure
- Factor (Beta)
- R (Beta)
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- RISC-V (Beta)
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- SQL
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- Perl (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.