That’s not a question that can be answered in a sentence or two, or even a paragraph. That’s something where you’ll need to learn more about JS to be able to implement and understand.
Now understand, I’m still new and learning but I think that anything someone can put succinctly into a couple of sentences will not be something that someone with not much of an idea about JavaScript will understand.
I’ll be monitoring this for responses. I’m all about learning.