Hot topics in web tech

Hello readers!

Here’s our latest collection of interesting reads from the ever-evolving world of web technology.

Learn how to use JavaScript iterators, get insights into React 19.2, find out what’s new in React Native, and much more.

Happy reading!

React 19.2 released

After a longer pause, the React team has released a new minor version of the popular library. This update introduces a new feature called Activity, which allows you to defer rendering parts of an application until the React renderer becomes idle. Another improvement is the useEffectEvent hook, which helps maintain a clean useEffect dependencies array and eliminates the need to disable the linter. For more details, check out the release notes.

The React compiler reached version 1.0

The React compiler is now ready for use in your applications. Data from Meta’s apps shows it delivers a solid performance boost. The compiler is backward-compatible with React 17, so you should not hesitate to give it a try! Learn more in the official blog post.

Understanding JavaScript Iterators

This article explains the mechanics behind iterators in JavaScript — how they work, how you can benefit from them, and how they differ from simple array iteration.

Async loops explained

JavaScript offers several ways to iterate over arrays of asynchronous tasks. This article explores which approach provides the best performance, which ensures execution order, and how to limit parallel execution of async tasks.

A new era of React Native

The React Native framework has entered a new era with the release of version 0.82. The old architecture based on the JavaScript-to-Native bridge (Legacy Architecture) has been deprecated. The framework now uses a new, significantly faster architecture. Additionally, this version introduces a new and improved rendering engine called Hermes V1. Read more about it in the article.