JavaScript Examples

Basic JavaScript Examples

Write text with JavaScript
Format text with HTML tags
JavaScript in the head section
JavaScript in the body section
An external JavaScript
Declare a variable, assign a value to it, and display it
If statement
If...else statement
Random link
Switch statement
Alert box
Alert box with line breaks
Confirm box
Prompt box
Call a function
Function with an argument
Function with an argument 2
Function that returns a value
Function with arguments, that returns a value
For loop
Looping through HTML headers
While loop
Do While loop
Break a loop
Break and continue a loop
Use a for...in statement to loop through the elements of an array
The try...catch statement
The try...catch statement with a confirm box
The onerror event

Advanced JavaScript Examples

Detect the visitor's browser and browser version
More details about the visitor's browser
All details about the visitor's browser
Alert user, depending on browser
Create a welcome cookie
Button animation
Image map with added JavaScript
Simple timing
Another simple timing
Timing event in an infinite loop
Timing event in an infinite loop - with a Stop button
A clock created with a timing event
Create a direct instance of an object
Create a template for an object

Jump to: Top of Page or HOME or Printer friendly page

W3Schools provides material for training only. We do not warrant the correctness of its contents. The risk from using it lies entirely with the user. While using this site, you agree to have read and accepted our terms of use and privacy policy.

Copyright 1999-2007 by Refsnes Data. All Rights Reserved.

W3Schools was converted to XHTML in December 1999