Write text with JavaScript Write HTML tags with JavaScript JavaScript in the body section JavaScript in the head section An external JavaScript
Examples explained
JavaScript statements. JavaScript blocks. Single line comments. Multiple lines comments. Single line comment to prevent execution. Multiple lines comment to prevent execution.
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
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
W3Schools is for training only. We do not warrant the correctness of its content. The risk from using it lies entirely with the user. Copyright 1999-2010 by Xdayx. All Rights Reserved.
