When trying to use the `useVideoJs` hook shown [here](https://joelhooks.com/usevideojs-a-react-hooks-for-videojs) I get the error `changedKey is not defined` on line 15. <img width="975" alt="Screen Shot 2022-05-25 at 2 43 13 PM" src="https://user-images.githubusercontent.com/3107683/170254670-d7ae77d6-8dc9-4d0e-ab96-297213ad4163.png"> Do you know what the right way to fix it is?
