Technology

When Mike Bostock created D3.js, he introduced a tried and true reusable charts pattern for implementing the same chart in any number of selections. However, the limitations of this pattern are realized once the chart is initialized. In this article, Toptal engineer Rob Moore presents a revised reusable charts pattern that leverages the full power of D3.js.

Today, we will be taking a look at the future of mobile payments and emerging opportunities for developers. Needless to say, with each new opportunity, developers will have to face new challenges.

However, since we are talking about money, I don’t think anyone expects a shortage of software developers eager to learn a few new tricks and get into this space.

Inheriting someone else’s code can be a nightmare, especially when the code is poorly designed and lacks documentation. In this post, Toptal Engineer Juan Pablo Scida provides a case study of how he reengineered a chat server written in Node.js, transforming its original spaghetti code into a cleanly architected and designed piece of software.

Connecting to remote computers and working on them through terminals over a network is something we often take for granted. Technologies that enable us to do this have changed the way we work and have opened doors to amazing possibilities. Although the inner workings of these technologies may seem like obscure knowledge, implementations of many of these technologies are surprisingly straightforward. In this article, Toptal engineer Igor Delac gives us a step-by-step tutorial on how to implement the Remote Framebuffer server-side protocol in Java, allowing Swing-based applications to run and be interacted with remotely using standard VNC clients.

When working on big web applications as a team with other developers, code needs to be scalable and readable. This can be a challenging process when it comes to CSS, although preprocessors like Sass are available. But only using preprocessors will only get you so far. In this article, Toptal engineer Matias Hernandez presents a style guide with advice on how to improve the way you write your code.

CSS preprocessors have been around for quite a while now. These tools, among many things, promise convenience in writing style sheets for the web. However, not everyone is taking advantage of these utilities, and is still resorting to writing vanilla CSS. In this article, Toptal engineer Marcelo Mazza discusses some of the reasons why he thinks Sass is the way to go and why you should be using it in your projects.

Proper test automation is a challenging yet essential ingredient for quality software applications. Explore maintainable test automation in Selenium, including Page Object model and Page Factory.