Understanding BOM in JavaScript (11R)

What does BOM stand for in JavaScript?

• Browser Object Model

• Basic Object Model

• Browser Output Model

• Binary Object Model

Which object is the primary interface for the BOM?

• console

• navigator

• document

• window

How can you access the browser's window object in JavaScript?

• Use 'document' to access the browser's window object.

• Use 'window' to access the browser's window object.

• The window object is accessed through 'navigator' in JavaScript.

• Access the window object by calling 'getWindow()'.

What method would you use to open a new browser window?

• Use Alt + F4 to close the browser

• Click on the browser icon on the desktop

• Use Ctrl + N or Command + N keyboard shortcut.

• Right-click and select 'Open New Window'

How do you get the current URL of the window?

• document.URL

• window.currentURL

• window.location

• window.location.href

What is the purpose of the `navigator` object in the BOM?

• The purpose of the `navigator` object is to provide information about the web browser and the operating system.

• To control the rendering of web pages.

• To manage browser cookies and sessions.

• To store user preferences for the browser.

How can you detect the user's browser using JavaScript?

• Use 'document.title' to get the browser name.

• Check the 'window.location' for browser type.

• Use 'navigator.userAgent' to get the browser information.

• Use 'navigator.language' to determine the browser.

What does the `screen` object provide access to?

• Access to file system properties such as storage and permissions.

• Access to screen properties such as width, height, and color depth.

• Access to audio properties such as volume and balance.

• Access to network properties such as speed and latency.

How can you change the size of the current browser window?

• Use the browser's print feature to adjust layout

• Change the screen resolution in system settings

• Press F11 to enter fullscreen mode

• Use the browser's window resizing feature or JavaScript methods like window.resizeTo.

What is the difference between `window.alert()` and `console.log()`?

• `window.alert()` is for user notifications, while `console.log()` is for debugging.

• `window.alert()` is used for logging errors, while `console.log()` is for user notifications.

• `window.alert()` displays messages in the console, while `console.log()` shows alerts to users.

• `window.alert()` is asynchronous, while `console.log()` is synchronous.