Elixir is all about performance. Say you have an app up and running with Elixir, but some parts aren't working as fast as you would like them to. That is where profiling comes in. Profiling tools usually walk you through the frequency and duration of function calls and where they spend their time. Erlang has impressive profile tooling available at its disposal. In this post, we will look into three profiling tools in Elixir: cprof, eprof, and fprof.

The Node.js team announced the release of version 18 on April 19. Node.js 18 has some significant new features that Node developers should be aware of. In this article, we'll look at some of the major highlights from this release.

Some exciting new improvements have been launched with React 18. When React 18 was announced a year ago, the team promised a gradual adoption strategy. Now, a year later, this is exactly what they've done and you can upgrade your app to the newest version. React 18 comes with a few breaking changes, depending on how you use it.

Object-oriented programming (OOP) is hard to achieve in a dynamic prototypical language like JavaScript. You have to manually stick to OOP principles because of language features like duck typing. This requires discipline, as nothing in the language enforces the principles. If a diverse team of developers with different backgrounds is involved, a codebase filled with good intentions can quickly become one chaotic mess.