Object of JavaScript

BOM model; window (the core of the entire BOM): History, document, location.

BOM can be implemented 1. Pop up a new browser window 2. Move, close, and resize the window 3. Page forward, back

Common Properties: History (attribute name); Information about URLs visited by customers (description)

Location (zodiac name); Information about the current URL (description)

Window. Property value = "attribute value" (URL)

Common methods: Prompt () (method name); Displays a dialog box to prompt the user for input

Alert () (method name); Displays a warning box with a hint message and a OK button

Confirm () (method name); Displays a dialog box with a hint, OK, and Cancel button

Colse (); open (); SetTimeout () invokes the function or evaluates the expression after the specified number of milliseconds, and SetInterval () invokes the function or expression by the specified period (in milliseconds)

Common Events for Window objects

Name	Description
OnLoad	A page or an image is finished loading
onmouseover	Move mouse over an element
Onlick	The event handle that is invoked when the user clicks on an object
OnKeyDown	One of the keyboard keys is pressed
OnChange	The contents of the domain are changed

History Common Objects

Name	Description
Back ()	Load the previous URL in the History object list
Forward ()	Load the next URL in the History object list
Go ()	Load a specific URL in the History object list

Common methods for Document objects

getElementById ()	Returns a reference to the first object that owns the specified ID
Getelementsbyname ()	Returns the collection of objects with the specified name
getElementsByTagName ()	Returns the collection of objects with the specified label name
Write ()	Write text, HTML expressions, or JavaScript code to a document

Checked property value checked: True unchecked: false

Date Object var datetime object =new Date (parameter)

Parameter format: MM DD,YYYY,HH:MM:SS

Object of JavaScript