What is common and what is the difference between: WebAPI, REST, RESRFULL, JSON, JSONP?

Question

JSON

Greetings!
I often see references to these technologies in Habr articles and even use some of this (!), But I myself can’t fully understand how these things differ and what they have in common. It seems that everyone works via HTTP, all use JSON ...

Answer 1

WebAPI, REST, RESRFULL - ways to interact
JSON, JSONP -
WebAPI text data format is something .NET's, not familiar with it
REST is a set of rules for describing how to interact with components of a
RESTful system - it's something like a property, which a system that respects all the rules of REST
JSON has - with it, I think, everything is clear, as in JavaScript there is a key -> object / array / value
JSONP - the same JSON, which, for security purposes, is wrapped in some kind of function, about which client must know