How do I tell if a user is using Brave as their browser?

Question

I have been messing around with the Brave browser (https://www.brave.com/), an I cannot figure out how to determine how if a user is using Brave. I used a simp

Answer 1

2020. Updated solution:

Chrome now adds a new key to the window object: googletag, as opposed to the old one: google

This is the working code now:

const ua = window.navigator.userAgent.toLowerCase();
const isChrome = /chrome|crios/.test(ua) && ! /edge|opr\//.test(ua)
const isBrave = isChrome && ! window.googletag;