Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning Scala Programming

You're reading from   Learning Scala Programming Object-oriented programming meets functional reactive to create Scalable and Concurrent programs

Arrow left icon
Product type Paperback
Published in Jan 2018
Publisher Packt
ISBN-13 9781788392822
Length 426 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Vikash Sharma Vikash Sharma
Author Profile Icon Vikash Sharma
Vikash Sharma
Arrow right icon
View More author details
Toc

Table of Contents (16) Chapters Close

1. Getting Started with Scala Programming FREE CHAPTER 2. Building Blocks of Scala 3. Shaping our Scala Program 4. Giving Meaning to Programs with Functions 5. Getting Familiar with Scala Collections 6. Object-Oriented Scala Basics 7. Next Steps in Object-Oriented Scala 8. More on Functions 9. Using Powerful Functional Constructs 10. Advanced Functional Programming 11. Working with Implicits and Exceptions 12. Introduction to Akka 13. Concurrent Programming in Scala 14. Programming with Reactive Extensions 15. Testing in Scala 16. Other Books You May Enjoy

Implicit conversions


The Standard Scala FAQ page describes implicit conversions as: "If one calls a method m on an object o of a class C and that class C does not support method m, then Scala compiler will look for an implicit conversion from C type to something that does support m method".

The idea is clear: it's a synthetic behavior (using a method) that we're forcing on instances of a particular type, and these behaviors (methods) aren't a part of the defined type. It's like we have a library with certain functionalities already available and we want to give some add-on functionality to a certain type from the library. Think about it—this is powerful. Having the ability to add on a functionality for a particular type is itself powerful. And that's what implicits let us do. We'll try our hand at something like the following.

First, think of a scenario where we want to create some syntax methods. We have a few methods available for the date-time library java.time.LocalDate that can help us...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime
Banner background image