// You aren't actually sure what browser they have but you have data on it. I guess
// you could return it and then find it out using 'if' and 'else if' statements
// Anyways, here you go:
// We want to alert the user about what their current browser is.
// We can use the navigator object to get the user's browser.
// Create a variable called browser and set it to the user's browser.
// Then alert the user what their browser is.
const browser = navigator.userAgent;
alert(browser);