How to make a chat

Question

I want to add chat to my code, for several people to communicate at once, but I don’t know it and nothing comes to mind, please tell me where to find it or write it below.

Answer 1

thank

Answer 2

firebase
web socket

Answer 3

Learn Node. Js and Jquery of css and html to manipulate with ur idea

Answer 4

https://code.sololearn.com/Wb819DHXTLW6/?ref=app