The main problem with detecting browsers is that different browsers have different capabilities. For example, Internet Explorer 8 and earlier do not support the canvas element, so a canvas element will not be detected.
if (navigator.userAgent.indexOf("Chrome") != -1) {
// do something
}
The code checks if the user is using the Chrome browser. If they are, the code inside the curly braces will run.
How to detect de browser
There is no one-size-fits-all answer to this question, as the best way to detect a browser in JavaScript depends on the specific needs of your application. However, some common methods for detecting browsers include using browser detection libraries such as Modernizr or webpagetest, checking for the presence of certain browser features such as HTML5 Canvas or Web Audio, or using the navigator object to query user information such as their operating system and browser version.
Main browsers
There are many browsers that support JavaScript. The most popular browsers are Google Chrome, Mozilla Firefox, and Internet Explorer.
