# Top level Objects in browser

## window

* window.innerHeight
    
* window.innerWidth
    
* window.navigator
    
* window.location
    
    * url info
        
* window.history
    
* window.localStorage
    
* window.sessionStorage
    

methods:

* window.alert()
    
* window.setTimeout()
    
* window.open()
    
    * open a new tab by default
        
    * window.open("https://example.com", "\_blank");
        

## navigator

* navigator.userAgent
    
* navigator.language
    
* navigator.platform
    
* navigator.onLine
    
* navigator.geoLocation
    

## document

* document.title
    
* document.cookie *// cookie*
    
* document.location *// URL* related
    
* document.getElementById()
    
* document.querySelector()
    
* document.createElement()
    

## location

* location.href *// full URL*
    
* location.protocol
    
* location.host
    
* location.hostname
    
* location.port
    
* location.pathname
    
* location.search
    
* location.hash
    

## history

* history.back()
    
* history.forward()
    
* history.pushState()
    
* history.replaceState()