JavaScript

How do I detect if the browser window has been resized?

Now we're going to get onto the dynamic parts of JavaScript. Events are occurrences triggered by a user interacting with your page, whether it be clicking on something or just moving their mouse around. By the end of this tutorial you'll have things responding to all sorts of user interactions.

One of the primary reasons JavaScript was assembled was to check whether the values entered into forms by readers were correct, thereby bypassing the lengthy trip to a CGI program to do the check. Here we'll learn the methods used to validate form input, using the onSubmit event handler.

Regular expressions are, in short, a way to effectively handle data, search and replace strings, and provide extended string handling. Often a regular expression can in itself provide string handling that other functionalities such as the built-in string methods and properties can only do if you use them in a complicated function or loop.

Make a table with highlighting cells when the mouse is over

Check the strength of a password with JavaScript

Create a flashing text effect

A simple JavaScript tutorial showing how to replace an image when the cursor rolls over it.

This tutorial is intended to get you started on your way to building your own drop down menu system in JavaScript.

In this tutorial we will create an AJAX callback with the jQuery library. The sample is very easy, but you can make it as complicated as you like!

Opens a new window and loads the document specified by a given URL.

This article presents an open source JavaScript library that finally brings bookmarking and back button support to AJAX applications.

The HTML Document Object Model (HTML DOM) defines a standard way for accessing and manipulating HTML documents. The DOM presents an HTML document as a tree-structure (a node tree), with elements, attributes, and text.

This article is going to show you how to create items on your page that you can drag and drop.

One of the most popular usages of JavaScript is to create a drop down menu. This tutorial will show you how to make one.