If an error occurs in a production React app, the end user will simply see a white screen and be unable to interact with the site. React guards or Error Boundary containers based on class components help resolve this issue and prepare a fully functional UI that will prevent the app from completely unmounting.
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On this page of the site you can watch the video online Handling Errors in a React Application | Error Boundary with a duration of hours minute second in good quality, which was uploaded by the user Misha Nep (web dev) 08 July 2021, share the link with friends and acquaintances, this video has already been watched 23,000 times on youtube and it was liked by 909 viewers. Enjoy your viewing!