(oops! follow-up) HOOKS! useEffect part 2. ⚛️🎄2018 React Holiday — Day 21

This is a follow-up to some dumb mistakes I made in this video: https://www.youtube.com/watch?v=PMrnj3eGt9c Soooooo sorry. 😬 Signup for the emails: https://react.holiday Full season playlist: https://codesandbox.io/s/m77lo006rp CodeSandbox: https://codesandbox.io/s/qlkyjwwn6q