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- JavaScript
- C#
- Ruby
- Python
- NASM
- Java
- Rust
- C++
- PHP
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- PureScript (Beta)
- Factor (Beta)
- CoffeeScript
- Crystal
- Julia (Beta)
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- Kotlin
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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.