Overview

Scala 3 represents the single largest revision to the Scala programming language in more than a decade. While anticipated to be mostly backward compatible, the language is getting a host of new features, deprecating other features, and ripping out some features entirely (like Scala 2.x macros). Without knowledge of the ways in which Scala 3 is different, organizations may struggle to make forward-looking technology decisions and properly prepare for the inevitable migration to Scala 3.

In this course, developers who are already familiar with Scala 2.x will get a high-speed introduction to all the changes coming in Scala 3, including semantic changes, syntactic changes, new features, and dropped features. Upon completion of the course, developers will be empowered to make better technology decisions in the present, and be comfortable with taking the first steps toward migration of code bases to the new version of the language.

Who Should Attend

Scala developers who are anticipating working on applications that have to be maintained for longer than 12 months, and who need a quick immersion in Scala 3.

Prerequisites

Good working knowledge of Scala 2.x.

Topics

• Enumerations
• Intersection, union, match, and dependent function types
• Given instances & using clauses
• Given imports
• Extension methods
• Type class encoding
• Type lambdas
• Implicit conversions
• Inlining, macros & staging
• Trait parameters
• Export
• Syntactic changes
• Dropped & deprecated features