Why Kotlin?

Talking about strength of Kotlin and the reasons why people should give a chance to it in addition to its application areas where most of the people still thinks Kotlin is only for Android.

Transcript

1. WHY KOTLIN? HOLD ON! HERE IS KOTLIN. Sevil Guler
2. Sevil Güler Senior Android Developer Normal Kotlin & Java Sevil Guler - 06.06.2019
4. HISTORY ▸ Not new at all 2011 -> 2012, Saint Petersburg ▸ Created by Jetbrains To increase their productivity Drive company business by keeping trust Drive sales of Intellij IDEA ▸ February 15, 2016 ▸ Google IO - 2017
5. KOTLIN ▸ Static typing Compile time 1. Performance is better 2. More reliable 3. Easier to maintain Type Inference (in contrast to Java) ▸ Object Oriented and Functional Design around object and supports OO concepts Not purely functional but : A. Lambda Expressions B. higher-order functions, C. operator overloading, lazy evaluation and much more. D. First class functions, immutability and no side effects
6. KOTLIN IS ONLY FOR ANDROID
7. KOTLIN IS ONLY FOR ANDROID
8. KOTLIN IS NOT ONLY FOR ANDROID
9. PROGRAMMING LANGUAGE FOR ECMAScript 5.1 EXISTING THIRD-PARTY LIBRARIES REACT COMMUNITY COMMONJS, AMD AND UMD LLVM MULTIPLATFORM Server-side development Kotlin-first
10. KOTLIN AIMS TO REPLACE JAVA
11. KOTLIN AIMS TO REPLACE JAVA SAY WHAT AGAIN? SAY WHAT ONE MORE GODDAMN TIME!
12. KOTLIN IS INSPIRED
13. KOTLIN IS INSPIRED ‣ JAVA, ‣ C#, ‣ JAVASCRIPT, ‣ SCALA ‣ GROOVY ‣ GO, ‣ SWIFT ‣ ETC by existing languages such as
14. KOTLIN IS INSPIRED ‣ JAVA, ‣ C#, ‣ JAVASCRIPT, ‣ SCALA ‣ GROOVY ‣ GO, ‣ SWIFT ‣ ETC by existing languages such as
15. REASONS TO USE KOTLIN ✴ Industrial-strength Object Oriented language - it is pragmatic
16. KOTLIN INCREASE PRODUCTIVITY ✴ Concise and Expressive
17. KOTLIN IS LESS PRONE TO ERROR ✴ Immutability ✴ Null Safety ✦ Java Code is defensive (NPE) ✦ Safe Call Operator (?) ✦ Safe Cast Operator (as?)
18. KOTLIN IS BOOMING ✴ It is the fourth most loved language on Github
19. KOTLIN IS SCALABLE ✴ Coroutines
20. KOTLIN IS SCALABLE ✴ Coroutines private suspend fun loadAllCategoriesTab() { val user = withContext(Dispatchers.IO) { getUser() } val recentlyUsedProducts = async { setupMyLatestUsedProducts(user.id) } val usedGearsOnThisCatch = async { setupUsedGears(user.id) } val topProductUnitsForCategoryByUser = { fetchTopProductUnitsForCategoryByUser(user.id) } setUserAllProductUnit( usedGearsOnThisCatch?.await(), recentlyUsedProducts?.await(), topProductUnitsForCategoryByUser.await().toMutableList() ) }
21. KOTLIN HAS NO COMPATIBILITY ISSUES ✴ Interoperable with Java
22. KOTLIN IS EASY TO ADOPT ▸ Easy to learn ▸ Terrific Support and great tools
23. CONCERN: YOUNG PROGRAMMING LANGUAGE CAN IT BE ADOPTED QUICKLY? We all know that most of us, software developers, love to chase after shiny things just as much as we like to build them. This is not different for programming languages. And, in this day and age, new young programming languages pop up like mushrooms
24. KOTLIN: YOUNG PROGRAMMING LANGUAGE “… COULD RELY ON THE EXISTING MATURE ECOSYSTEM?”
25. KOTLIN: YOUNG PROGRAMMING LANGUAGE “… DO I HAVE TO LOSE ALL THE GREAT FEATURES OF MY IDE NOW?” Sofie
26. KOTLIN: YOUNG PROGRAMMING LANGUAGE “WHO DOESN’T WANT THIS KIND OF ADOPTION SUPERPOWER?” Sofie
27. KOTLIN: YOUNG PROGRAMMING LANGUAGE “…LEVERAGE AS MUCH AS YOU CAN FROM THE MATURE ECOSYSTEM…”
28. COMPANIES 1. Google 2. Amazon 3. Netflix 4. Pinterest 5. Uber 6. Foursquare 7. Trello 8. Squares 9. Capital One 10. Coursera 11. Basecamp 12. Corda 13. JetBrains (obviously)
29. KEY TAKE AWAYS ▸ Kotlin brings compile time null checks, functional aspects and expressive syntax to the JVM platform ▸ Kotlin is interoperable with Java and can be introduced incrementally to an existing Java project ▸ Projects heavy on boilerplate and logic are good candidates adopting Kotlin ▸ Kotlin integrates well with popular frameworks including Spring and HIbernate ▸ Kotlin can significantly reduce the size of a Java code base by eliminating boilerplate
30. BE THE TECHNOLOGY
31. THANK FOR LISTENING. ANY QUESTION? sevillguler@gmail.com Email: Linkedin: www.linkedin.com/in/sevilguler Twitter: SevilGuler_