# BOM (Browser Object Model)
# Introduction
The BOM (Browser Object Model) contains objects that represent the current browser window and components; objects that model things like history, device's screen, etc
The topmost object in BOM is the window object, which represents the current browser window or tab. 
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- Document: represents current web page.
- History: represents pages in browser history.
- Location: represents URL of current page.
- Navigator: represents information about browser.
- Screen: represents device's display information.
# Window Object Methods
The most important object in the Browser Object Model is the window object. It helps in accessing information about the browser and its components. To access these features, it has various methods and properties.
| Method | Description |
|---|---|
| window.alert() | Creates dialog box with message and an OK button |
| window.blur() | Remove focus from window |
| window.close() | Closes a browser window |
| window.confirm() | Creates dialog box with message, an OK button and a cancel button |
| window.getComputedStyle() | Get CSS styles applied to an element |
| window.moveTo(x,y) | Move a window's left and top edge to supplied coordinates |
| window.open() | Opens new browser window with URL specified as parameter |
| window.print() | Tells browser that user wants to print contents of current page |
| window.prompt() | Creates dialog box for retrieving user input |
| window.scrollBy() | Scrolls the document by the specified number of pixels |
| window.scrollTo() | Scrolls the document to the specified coordinates |
| window.setInterval() | Do something repeatedly at specified intervals |
| window.setTimeout() | Do something after a specified amount of time |
| window.stop() | Stop window from loading |
# Window Object Properties
The Window Object contains the following properties.
| Property | Description |
|---|---|
| window.closed | Whether the window has been closed |
| window.length | Number of <iframe> elements in window |
| window.name | Gets or sets the name of the window |
| window.innerHeight | Height of window |
| window.innerWidth | Width of window |
| window.screenX | X-coordinate of pointer, relative to top left corner of screen |
| window.screenY | Y-coordinate of pointer, relative to top left corner of screen |
| window.location | Current URL of window object (or local file path) |
| window.history | Reference to history object for browser window or tab. |
| window.screen | Reference to screen object |
| window.pageXOffset | Distance document has been scrolled horizontally |
| window.pageYOffset | Distance document has been scrolled vertically |
# Remarks
For more information on the Window object, please visit MDN (opens new window).
The window.stop() method is not supported in Internet Explorer.