How to identify a user with a mobile device?

Question

JavaScript

Good day community. Based on your skills and experience, what do you think is the most booletproof way to determine on the client today that the user has accessed the site from a mobile device.

Answer 1

const isMobile = /Mobile|webOS|BlackBerry|IEMobile|MeeGo|mini|Fennec|Windows Phone|Android|iP(ad|od|hone)/i.test(navigator.userAgent);

Answer 2

device.js

Answer 3

One line of js