39 articles found
I migrated a production dashboard from Redux to Zustand and the entire state management layer went from 1,200 lines to 340. Here's everything I learned about Zustand -- the good, the surprising, and the gotchas.
A blind user filed a support ticket for our app. Lighthouse said our accessibility score was 94. The user couldn't complete a single task. Here's what I learned about building React components that actually work for everyone.
Most React performance advice sounds great in a blog post and falls apart in a real codebase. I've spent years profiling production apps, and the bottlenecks are almost never where you'd guess. Here's what actually matters -- from the memo traps everyone falls into, to the virtualization wins that saved our dashboards, to the React 18 concurrent features that changed how I think about responsiveness.
Every Express tutorial ends at app.get('/hello'). Here's what I've actually learned shipping Express APIs to production -- project layout, error handling that doesn't make you cry, validation, and the middleware patterns our team relies on.
The basic Dockerfile from every tutorial will get you started. It won't get you to production. Here's how to set up containers that are actually ready for real traffic.
Closures clicked for me when I stopped reading definitions and started looking at code I'd already written. Turns out I'd been using them for years without knowing it. Here's how I'd explain them to someone on my team.