How to display information depending on the selected condition (information)?

Question

JavaScript

Good day. I'm trying to make a small functionality on the site. There is an element of the list when clicked on which opens in it, too, there is a list with elements, when clicked on which is displayed with information pulled out of the DB. Like a bunch of bookmarks. Those. the essence of the work is to display information depending on the selected conditions. How to implement it? Thank you.

Answer 1

https://stackoverflow.com/questions/12032271/condi...