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How-To

React for beginners

A developer’s introduction to React

It’s time for another tutorial from Flavio Copes! This week, we’re taking a look at React. React is a JavaScript library that aims to simplify development of visual interfaces. Today, we’re learning why it’s so popular and what problems it solves.

Let's go exploring!

A tour of Akka Cluster – Akka distributed data

How can we make building distributed systems easier? In this article, Manuel Bernhardt explores one useful tool in the Akka toolbox: Akka Cluster. Today, we’re taking a closer look at one module, Akka Distributed Data, and how it can be used to build an example reactive payment processor.

Part five of five

Testing your frontend code: Visual testing

How do you start testing your apps? In part five of five, Gil Tayar concludes his series on frontend testing for beginners. In this final post, Tayar goes over visual testing and why it’s the last step in testing frontend code.

Part two of five

Testing your frontend code: Unit testing

How do you start testing your apps? In the second installment in a series of five articles, JAX London speaker Gil Tayar introduces frontend testing for beginners, starting from what it is and why testing code is not optional.

How to use Kotlin

Kotlin cheat sheet: Tips & tricks

Google recently declared Kotlin as a first-class language. This increased visibility means everyone is looking at this programming language. Here, Dmitry Jemerov explains some tips and tricks for dealing with basic syntax, classes, and more in Kotlin.

"A sharder's tale"

Failure, DevOps and data migration at Etsy

Etsy engineer Bethany Macri speaks about the company’s decision to move from Postgres to MySQL and the tools and workplace culture their software has used to take a successful DevOps approach.