Category Archives: Programming

Notes, posts about programming

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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Java: Stream and Classic Loop – Benchmark

Java 8 has rich possibilities to process the collections. One of them is stream. The main goal of stream, as I see it, is changing of programming paradigm: from “how to do” to “what to do”. Focusing

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How to build map from stream – examples

Java 8 suggests  nice ways to create maps from stream. You can see some code examples on GitHub: https://github.com/ysden123/ys-pjava/blob/master/basics/src/main/java/com/stulsoft/pjava/basics/stream/CollectExamples.java

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Usage of CompletableFuture

Java 8 gives flexible ways to perform asynchronous tasks. One of a such ways is usage of CompletableFuture.

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JavaScript – Performance, comparison operator

What about performance of two comparison operators in JavaScript: == and ===? I wrote simple code to get answer.

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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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