EXERCISES


1:

What is wrong with the following alert box?

 
 alert("Hello<br>", "world!<br>"); 

Create a JavaScript program that produces the previous alert box. When the alert dialog box appears, what does the program do?

2:

What is the return value of the prompt method if the user doesn't enter anything? Where is the return value stored?

3:

Create a JavaScript program that prompts the user for a phone number and then asks him for confirmation.




JavaScript by Example
JavaScript by Example (2nd Edition)
ISBN: 0137054890
EAN: 2147483647
Year: 2003
Pages: 150
Authors: Ellie Quigley

Similar book on Amazon

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net