Is there a way to get html files using javascript like getting element Id in DOM

Question

Getting html with javascript

Answer 1

I think ...
document.getElementsByTagName(‘html’)[0]
would work.

Answer 2

If you mean a file, there are <input type="file" >

Otherwise use Node.js fs module

Answer 3

Yes. But you should learn ES6 first. Then promises.
Learn Ajax and fetch API.