161122. Example of BOM operation

Browser-related information

Browser information

Navigator.useragent//mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) applewebkit/537.36 (khtml, like Gecko) chrome/54.0.2840.71 safari/537.36

Operating system platform running the browser

Navigator.platform//Macintel

Browse Record History

Forward

History.forward ()

Back off

History.back ()

URL Information

Page Jump

The current page is recorded in the history of browsing history

Location.href = ' http://www.baidu.com '

The current page is not recorded in the history of browsing history

Location.replace (' http://www.baidu.com ')

Page Reload

Location.reload ()

Get information about the current URL

Assuming the current URL is http://192.168.31.194:8000/jquery/index.html?a=3&c=aa#b

Location.href//Full URL

Location.hostname//192.168.31.194

Location.host//192.168.31.194:8000

Location.port//8000

Location.protocol//http:

Location.search//? A=3&C=AA

Location.hash//#b

Location.pathname///jquery/index.html

Global objects

Information pop-up box

Alert (' You're handsome! ‘)

Confirm Popup Box

var isReady = confirm (' Ready to come? ')

if (IsReady) {

} else {

}

Enter the information pop-up box

var name = prompt (' Please enter your name ')

Console.log (name)

Open a new window

Open (' http://baidu.com ')

Change the URL of a window

Open (' http://baidu.com ', ' a ')

The address of open (' http://youku.com ', ' a ')//above window will change from Baidu to Youku

Executed after a period of time

1 seconds to execute.

SetTimeout (function () {

Dosth

}, 1000)

Execute every once in a while

var i = 1

Executes every 1 seconds after

var runId = setinterval (function () {

Console.log (i++)

if (I >= 10) {

Clearinterval (RUNID)//Stop execution

}

}, 1000)

The screen is executed every time it refreshes

It is common to render some UI.

var Targetel = Document.queryselector ('. Tar ')

var res

var isstop

var runId = requestanimationframe (function () {

Targetel.text (RES)

if (isstop) {

Cancelanimationframe (RUNID)

}

})

Output information in the console

Console.log (' Log message ')

Console.warn (' warning message ')

Console.info (' General Information ')

Console.error (' Error message ')

Console.log (' 1+2 =%d ', 3)

var person = {name: ' Joel ', Gender: ' Man '}

Console.log (' Name:%s, Gender:%s ', Person.name, Person.gender)

161122. Example of BOM operation