How we used EAS Update fingerprints and GitHub Actions to let a QA-approved release PR decide between an over-the-air update and a store build, without loosening QA.
Ever built a React Native list and tapped an item, knowing your state updated, but the UI just sat there looking unbothered? Yeah, same. The culprit is almost always a missing extraData prop on your FlatList — and once you get why it happens, you'll never forget it. In this post, we're breaking down exactly what extraData does, when you need it, and the sneaky mistakes that'll have you debugging in circles. No fluff, just the good stuff.