React Advanced

React Advanced 2022

Today's Talk introduces Reacher, a performance monitoring tool for React and React Native codebases. It highlights the need for catching performance regressions early in the development process and identifies JavaScript misusage as a common source of performance issues. ReaSure, developed by Covstack, is presented as a promising library that integrates with existing ecosystems and provides reliable render time measurements and helpful insights for code review. Considerations for operating in a JavaScript VM are discussed, including JIT, garbage collection, and module resolution caching. Statistical analysis using the z-score is mentioned as a method for determining the significance of measurement results.

<p>As developers we love to dive into performance metrics, benchmarks, compare one solution to another. Whether we enjoy it or not, we’re often required to fix performance issues in our React and React Native apps. But this process is not sustainable and prone to regressions, especially as the app and team grow. What’s worse, those issues are often discovered by your users, making their experience miserable. In my talk I’ll introduce you to Reassure—a performance regression testing library for React and React Native— which happens to be a missing piece in our automated testing and performance suites. Spotting problems before they hit production.</p>

#react reassure