Category Archives: Scala

sbt 1.0.0 is now available

http://developer.lightbend.com/blog/2017-08-11-sbt-1-0-0/ new release of sbt is available!

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Scala exercises

Nice site with lots of exercises on Scala: http://aperiodic.net/phil/scala/s-99/

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npm Package Analyzer

Sometimes You need to check if You really use all modules specified in package.json. I wrote

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Functional error handling in Scala

Functional error handling in Scala alvin February 13, 2017 – 11:08am Here are a few nice blog posts on functional error-handling in Scala: – Easing into functional error handling in Scala – How do I error handle thee? – Designing … Continue reading

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Scala – type bounds notation for beginners

For beginners in Scala (like me) type bounds notation causes difficulty. I tried to write  short cheat sheet with Scala type bounds notation: Scala – type bounds notation for beginners

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Void function as argument in Java and Scala

Simple example shows how to pass a function to a method. The function doesn’t have argument and doesn’t return a result.

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Scala. Akka: HTTP server example

I wrote on Scala a simple HTTP server using Akka. The example demonstrates the usage of the low-level server side API. First release contains one example with using synchronous request handling. Example shows how to return HTML page from a file (static page). … Continue reading

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Operators for Collections in Scala (v2)

Short reminder of operators for collections in the Scala, version 2. Previous version: Operators for Collections in Scala Operators for deleting and adding elements Operator Description Collection type coll :+ elem Adds elem element at the end of coll collection. … Continue reading

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Operators for Collections in Scala

Short reminder of operators for collections in the Scala: +   – adds an element into unordered collection +:  – adds an element at the beginning :+  – adds an element at the end ++  – joins two collections – and – –   – deletes an … Continue reading

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Traits–reminder

Short reminder about traits in Scala. When a class extends a trait, it uses the extends and with keywords based on whether the class extends one trait or several traits.

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