How to update Data in Mern-Stack?

please don’t post an image, post your code, otherwise it’s impossible to read and debug

even better, give a link to your github repo or similar, and a live app


When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (').