This talk is a deep dive on how React concurrently renders to provide time slicing and touches on concurrent hooks like useTransition and useSyncExternalStore.

A practical talk on we handled a concurrency use-case in a React application that we had (auth token refresh / duplicate requests) and how we made it using the library async-mutex coupled with RTK query.

In the spirit of Halloween, we’re diving into the dark side of React with a spooky look at Refs—an often overlooked but incredibly powerful tool. In this talk, we’ll explore how Refs can be used to bend and even break React’s "rules." Join us for a chilling journey through various use cases of Refs and uncover the mysterious useImperativeHandle—React’s least known (and perhaps most haunted) hook. Get ready to defy React’s conventions in this eerie exploration!

My team ships AB tests constantly. At some point, the codebase started turning into a graveyard of feature flags, dead conditional logic, and TODO comments (or the lack thereof) about cleaning up old experiments. The breaking point: a major component with 4 experiments - hundreds of lines, where changing one thing risked breaking another (which it did). That's when I discovered that custom hooks could be more than reusable logic - they could be containers for isolating experimental code.
Through this talk, I’ll share my experience of using hooks as boundaries for implementing experiments, and how this pattern has improved the way my team can ship features fast while keeping technical debt in check.