The window.navigator property exposed by browsers points to a Navigator object which is a container object that makes a lot of Web Platform APIs available to us.

The standard and widely implemented properties include:

• cookieEnabled, true if cookies are enabled
• geolocation, points to the Geolocation object used by the Geolocation API
• language, returns a string for the browser’s current language
• onLine, returns true if the browser is online (browsers interpret this differently; be aware)
• serviceWorker, the ServiceWorkerContainer for the document (see Service Workers)
• userAgent, the User-Agent string of the browser

The standard methods include:

• registerProtocolHandler(), lets websites register as handlers for custom protocols.

There are many more methods and properties which are provided by APIs that are either experimental or implemented as drafts and not yet finalized, or just available on a tiny fraction of browsers, so I haven’t included them here but you can explore them all on MDN.

Lessons in this unit:

0:	Introduction
1:	The URL object
2:	URLSearchParams
3:	Get the URL fragment
4:	Set the URL fragment
5:	▶︎ The Navigator object