How to implement camera + viewport CANVAS in game?

Question

JavaScript

Hello, Dear programmers!) I don’t understand how to correctly implement a camera on a game character.
please tell me how to do it right?

Answer 1

Choose one of the popular engines, and look at the source.
https://www.slant.co/topics/768/~best-javascript-g...
There are several more than one way, and there is no single correct one.
If you are not at all in the subject, then before writing your own engine, it does not hurt to get acquainted with the capabilities of competitors.