This is a livestream the Joe held in preparation for Shareable Custom Hooks in React.
Hooks are awesome because they're "first-class" utility functions provided by React to let you hook into state and other features while writing components. The cool thing about Hooks is that you can build on top of them to make your own. It’s like writing a function on top of lodash. You can gather something that might be reusable, and then package it up into a custom hook. That is the beauty of writing a shareable custom Hook in React.