Go ProSign in

This Lesson is for Members

Subscribe today and get access to all lessons! Plus direct HD download for offline use, enhances transcripts, member comment forums, and iTunes "podcast" RSS feed. Level up your skills now!

Unlock This Lesson

Already subscribed? Sign In

Autoplay
Hide playlist

    Revert State On Request Failure using React setState and Closures

    A crucial part of implementing optimistic UI updates is properly handling failure cases. In the event of a request failing, we must revert the state which we’ve already updated since we assumed success at the time of user interaction. Thanks to the simplicity and power of setState() combined with Javascript's lexical scoping and closures, we can accomplish this relatively easily in React.

    You must be a Member to view code