Is it possible to add a form, fields, buttons to the page with three js?

Question

JavaScript

I add input type='text' to body via appendChild, but the field is not available. Is it even possible to add normally working form, input, button on a page with three js?

Answer 1

three.js doesn't work with the DOM (elements on the page) at all, it only renders on the Canvas.
If you need buttons/fields, etc., you can add them on top of the canvas with position:absolute