I have a webview in my app that I would like to allow users to highlight text in yellow there. As it is webview I can use javascript to archive this.

I need to allow users to select, undo the select text and keep the selected text for next time user open the app/page. Any ideas how can I archive this in javascript?

I saw some other posts here, but they are old and using some basic javascript that not keep the results and do not allow user to undo the selected texts.

Thanks a lot.