Articles for React/React Native

A couple of weeks, Meta announced the release of react-strict-dom. I can't stress just how a big a deal this is. Fundamentally, this will change the way we use React Native (and React on web, for that matter). It provides…

Today is a sad day for the React Native ecosystem. Microsoft very quietly announced that App Center is being "retired" in just over a year's time (at the end of March 2025). Over the years of building React Native apps,

Introduction Our team at Theodo UK recently had the delightful challenge of building a universal app - an app that runs on multiple operating systems from a single codebase. This project presented many interesting technical problems, including the task of automating…

Introduction If you’re reading this article you’ve probably decided to use a cross-platform framework over native development. Cross-platform frameworks allow you to deploy to multiple platforms from a single codebase, which has two main benefits:Cost and time savings Consistency in UX/UIThe two…

TLDRRun npx expo export -p web --dump-sourcemap in your project. This will create a dist directory with your exported project along with the sourcemaps. Run npx source-map-explorer dist/**/*.js to get the graphic representation of your sourcemaps.Before the days of Hermes, a…

Several years ago, I was working on a web project that had quite a number of critical web flows that needed to be regularly tested to make sure that there weren't any regressions from functionality or performance across the app.

Over the years, I've heard whispers of the mystic powers of StyleSheet.create, and how not using StyleSheet would negatively affect performance. The other day, curiosity got the better of me, and I went down a rabbit-hole of looking into…

I recently published an article and thread comparing iOS rendering performance across SwiftUI, React Native, and Flutter. The results showed that SwiftUI (unsurprisingly) performs the best, followed by React Native and Flutter respectively. I got some interesting feedback and suggestions from…

Introduction This article is meant to be an exploration of the state of creating Microfrontends (MFEs) for native mobile apps in 2023. It covers the history of MFEs, giving a brief intro, and then looks into how React Native's architecture can…

When SwiftUI first came out, I remember reading about complaints around its performance. Some animations were janky (compared to UIKit) and app layouts were getting recalculated far too much, resulting in unnecessary computation power being used. People reported it being…