Scala Introduction - Meetup Scaladores RJ
- 2. About me RODRIGO LIMA Software Engineer @Stone
- 3. Index What is Scala? Who are using Scala? How to use? Some features of language. Why use?
- 4. What is Scala? Scala was created by Martin Odersky.
- 5. What is Scala? In 2001 Martin Odersky began to develop a language on the JVM. Martin has created a language called Pizza, worked on the Java compiler and Java generics 5.
- 6. What is Scala? Early 2004 Scala was released on the Java platform. In June 2004 on the .NET Framework. The .NET support was officially dropped in 2012.
- 7. What is Scala? May 2011, Odersky launched Typesafe Inc. Currently named Lightbend Inc.
- 8. “ Scala is an acronym for Scalable Language ” Is so named because it was designed to grow with the demands of its users.
- 10. What is Scala? Programming Imperative Declarative Procedural Object Oriented Logic Functional FORTRAN, C C#, Java Prolog Haskell, Erlang
- 11. What is Scala? Other functional languages
- 12. We’ve found that Scala has enabled us to deliver things faster with less code. Graham Tackley from TheGuardian. “ ”
- 14. What is Scala? But, anyone can use Scala? You have to have affinity!
- 15. What is Scala? You can create methods with symbols
- 17. What is Scala? Scala compiles to Byte Code in the JVM; I can write a .class being java or scala code; I can use Java libs in Scala; With this, we have Interoperability with Java; Have two paradigms, Object Oriented and Functional Programming.
- 18. If I were to pick a language to use today other than Java, it would be Scala. James Gosling, the creator of the Java programming language “ ”
- 19. Who are using Scala?
- 20. Who are using Scala? Play Framework to build web applications with Java & Scala. For building concurrent, distributed, and resilient applications on the JVM. Apache Spark is a fast and general engine for big data processing.
- 21. How to use? REPL (Read-Evaluate-Print-Loop);
- 22. How to use? IDE's - Eclipse (Scala IDE) - NetBeans - plugin - IntelliJ IDEA - plugin
- 23. Some features of language. It is strongly typed (static) and type inference by the compiler;
- 24. Some features of language. Scala.js Scala code Scala.js Compiler JavaScript
- 25. Why use Scala?
- 26. Why use Scala? Java x Scala
- 27. What use Scala? Scala used for create software that makes use of : - Concurrent processing; - Parallel utilization of multiple cores; - Distributed processing.
- 28. Unlike with many traditional functional languages, Scala allowed us a gradual, easy migration to a more functional style. Rodrigo Lima, passionate about Scala. “ ”
- 29. So, Why not?
- 30. Learn more about Scala http://scaladores.herokuapp.com
- 32. Contacts E-mail: [email protected] LinkedIn: https://br.linkedin.com/in/rodrigolimasss GitHub: https://github.com/RodrigoLimasss Twitter: https://twitter.com/rodrigolimasss Blog: http://rdlima.com
Editor's Notes
- #5: Professor at the Ecole Polytechnique Federale de Lausanne, na Suiça.
- #6: Pizza já tinha: - Generics - Class cases - Pattern matching
- #8: Criada na Suiça Hoje mantêm o Scala e os frameworks Play e Akka
- #9: Tem esse nome pq é designada para crescer de acordo com a demanda do usuário. criar linguagens (DSL)
- #11: Taxonomia/classificação das linguagens
- #13: - Nós descobrimos que Scala nos permitiu entregar as coisas mais rápido, com menos código. - Falar algum fato sobre eles. ????????????
- #15: A migração para o functional é lenta e gradual. É a melhor linguagem para migrar de OO para functional; - A linguagem te da muito poder e te deixar fazer um monte de coisa.
- #16: A linguagem te da muito poder e te deixar fazer um monte de coisa. vc consegue criar metódos que parecem uma operadores de uma linguagem nativa.
- #19: “Se eu escolhesse uma língua para usar hoje além de Java, seria Scala”
- #20: Twitter: Migrou back-end de ruby para Scala desde 2010, hoje são referencia em Scala com diversos frameworks opensource e o ScalaSchool
- #21: São desenvolvidos em Scala
- #22: REPL, não precisa abrir a IDE pra testar.
- #23: Instalar o Scala e o SBT na máquina;
- #25: Scala also can compile to JavaScript, making it possible to write Scala programs that can run in web browsers. – Scala.js
- #28: Scala é usada para criar softwares que fazem uso de processamento concorrent, utilização paralela de multiplos cores e processamento distribuido.