A Happy Programmer

 https://www.debuggr.io/react-update-unmounted-component/ https://reacttraining.com/blog/useEffect-is-not-the-new-componentDidMount/ https://daveceddia.com/useeffect-hook-examples/ https://overreacted.io/a-complete-guide-to-useeffect/ https://blog.logrocket.com/how-to-get-previous-props-state-with-react-hooks/

  https://www.quora.com/In-Twitter-why-do-some-web-links-render-an-images-in-a-tweet-and-others-only-display-the-URL