Rock the JVM

🚨 New advanced course! 🚨 The brand-new Advanced Kotlin course is out to give you the rare skills of a senior developer. Come write 1800 lines of code and master the most advanced Kotlin features: https://lnkd.in/djb3dsqu This course focuses on two big areas of Kotlin that few developers have mastered. The first is Kotlin's powerful type system, way beyond the basic OOP, generics and the like. With the ideas in this section, you will get the skills to create general and powerful code for other developers to use. The stuff of libraries, custom DSLs and generic code for large codebases - this is your goal here. The second big area is deep knowledge of Kotlin internals. Very few developers can use Kotlin reflection, compiler plugins or code analyzers to create frameworks or dispatch code dynamically at runtime. In this section, you will learn how to do it. After this course, you will become not just a productive Kotlin developer, but you will help other developers be at their best, and you'll know exactly what you're doing and why. What's in the course? 📹 7.5 hours of 4k video 👩💻 1800+ lines of code 📈 50+ practical examples and exercises 💻 full access to the code and supporting slides 🔄 free updates, never expires 🏋️ exclusive access to the private Rock the JVM community Deals? The first 128 people to use the code ROCK_ON at checkout get 25% off! Enjoy!

New long-form article! Raise your Tests: a guide on how to properly test your functional #Kotlin code written with the Arrow library and the Raise DSL: https://lnkd.in/dRqPYRWG by Riccardo Cardin 🈺

How should a Scala developer react when they hear another Scala developer say "for loop"? 🚶 leave 🙄 roll eyes 🔫 do the Pulp Fiction "say that again, I double dare you" scene 👩💻 write a monad tutorial 😇 direct them to Rock the JVM

What you make with code matters way more than the language & tools you use to build it. That said, pick tools which get out of your way. It should be easy to put your thoughts in code, and once you write it, you should know it works. #Scala is great for that.

New video! Automatic dependency injection in pure #Scala, with no frameworks or libraries, just with the type system and 50 lines of code: You'll learn - where DI is useful - how the ZIO library does it - how we can do (almost) the same without effects or layers Technique by Martin Odersky (GitHub link in the comments) after an informal discussion, with a bit of twist at the end. Please enjoy! https://lnkd.in/eyyMJDbC

Take all the time you need to pick a great general-purpose tool, and then stick with it. #Scala is an amazing choice.

New video! A distributed remote code execution engine written in #Scala with Apache #Pekko: https://lnkd.in/djUUvkvb You'll learn - how to set up a distributed cluster in a situation where it makes sense - how to set up an HTTP server as a gateway + load balancer - how to run code remotely - how to set up a Docker infrastructure for both deployment and running code in a sandbox This system contains many critical parts of Pekko, including - typed actors - clustering and registration - HTTP - serialization - configuration - a bit of streams Enjoy!

Few people and companies understand this: #Scala is that rare tool that makes everything easier: - backend - frontend (more than most JS libs, and I've used many) - architecture - domain modeling - testing - code reasoning (underappreciated and directly related to productivity)

New beginner-friendly video! The power of recursion - the ability to read, write and understand code clearly, and guarantee its correctness: https://lnkd.in/eMSUnd72 Examples in #Scala, but applicable to any programming language. If you're a senior developer, you might consider this video as inspiration for how to guide other junior developers. Please enjoy!

#Kotlin is a great and productive language. Some of its best features have #Scala to thank for. But it's what Kotlin did not add that made it appealing to a much bigger audience. It's very likely that Scala was part of that conversation too.