How to make ajax websites?

Question

Layout

Never did this. More precisely typeset, but these were my personal projects. Those. back-end was also on me :)
Let's say I received the layout of an online store for layout. The sidebar contains sliders, checkboxes and buttons, which should, of course, load the content with ajax when it changes.
Actually questions:
1. As I understand it, they will give me a clear documentation of the formation of the request in the TOR? Can I have a piece of this very TK for practice?
2. Are there any plugins to avoid writing a bike?

Answer 1

What does "how" mean?
Just like any other sites.
If the specification contains a description of the API, then we put stubs on this API and typeset it.
If there is no API description, then we simply make our own stubs and typeset with them.