Web Programming: Window Object and Dialog Boxes
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Questions and Answers

In JavaScript, which function is used to display an output message to the user?

  • window.confirm()
  • prompt()
  • alert() (correct)
  • window.prompt()

What will the following code display: 'alert(9+1);'?

  • 10 (correct)
  • 9
  • An error message
  • 91

Which of the following objects is not directly related to JavaScript objects?

  • form object
  • dialog object (correct)
  • document object
  • window object

In JavaScript, what is the purpose of the document object?

<p>Manipulate HTML elements in a document (A)</p> Signup and view all the answers

What is the syntactic rule for identifiers in JavaScript?

<p>Include any number of letters, digits, and spaces (D)</p> Signup and view all the answers

Which object is responsible for executing JavaScript entirely within the browser?

<p>Window object (C)</p> Signup and view all the answers

What is the purpose of the document.write() method in JavaScript?

<p>To write content to the current web page (A)</p> Signup and view all the answers

Which of the following is NOT a basic method of the Window object for creating dialog boxes?

<p>dialog() (C)</p> Signup and view all the answers

What is the purpose of the window.confirm() method in JavaScript?

<p>To display a message and get a yes/no response from the user (B)</p> Signup and view all the answers

How can you access the document object in JavaScript?

<p>Using <code>window.document</code> (C)</p> Signup and view all the answers

What is the purpose of the window.alert() method in JavaScript?

<p>To display a message and wait for the user to press OK (B)</p> Signup and view all the answers

What is the relationship between the window object and the document object in JavaScript?

<p>The <code>document</code> object is a property of the <code>window</code> object (A)</p> Signup and view all the answers

What does the 'prompt' method do in JavaScript?

<p>Display a dialog box with a text box and two buttons (A)</p> Signup and view all the answers

What is returned if a user clicks 'OK' without typing anything in the prompt box?

<p>The word 'undefined' (B)</p> Signup and view all the answers

What does the 'window.alert' method do in JavaScript?

<p>Open a dialog box to display information (C)</p> Signup and view all the answers

When using the + operator in JavaScript, what can it be used for?

<p>Both performing arithmetic operations and adding string values (A)</p> Signup and view all the answers

Which object in JavaScript has the capability to display dialog boxes?

<p>'Window' object (D)</p> Signup and view all the answers

In JavaScript, which object allows interaction with the browser window?

<p>'Window' object (A)</p> Signup and view all the answers

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