Navigator
window.navigator  or navigator   is a read-only property and ** contains different methods and functions related to the browser. 
Let's look at a few examples of navigation.
- navigator.appName: It gives the name of the browser application - navigator.appName; // "Netscape"- Note: "Netscape" is the application name for IE11, Chrome, Firefox, and Safari. 
- navigator.cookieEnabled: Returns a boolean value based on the cookie value in the browser. - navigator.cookieEnabled; //true
- navigator.platform: Provides information about the browser operating system. - navigator.patform; "MacIntel"