JavaScript regular expressions work similar to regular expressions in other languages.

A book doesn't have to be only about JavaScript in order for it to have value to those writing JavaScript. In this particular case the book covers six different variants of regular expressions of which JavaScript is one. That means you not only get info on regular expressions for JavaScript but you also get the appropriate variant to use in your server side processing as well.

Read my review of "Regular Expressions Cookbook"

Some words have special meanings when used with objects - :this" is one of them.

In the seventh tutorial on Object Oriented JavaScript we look at how you can use "this" within your object constructor to reference the object being constructed.

Dot Notation and "this"

JavaScript can access collections of any HTML tag within the web page.

Now that we have considered some older but still useful methods of accessing and updating information in a web page from JavaScript (as well as the most common way of using the DOM to reference a specific tag), it is time to look at more of the standard DOM ways of doing so. In the seventh DOM tutorial we look at the most powerful of these which can provide access to all of the tags on the web page (or all of a given type) all in the one array.

getElementsByTagName

You don't have to pay for JavaScript code, there is always a free version around somewhere

One script that seems to be a popular item for internet marketers to try to sell to other internet marketers is one that will create a hovering "Buy Now" box that stays visible on the screen while the person reads their compelling content that convinces them that they need to buy whatever is being sold. When they decide to buy the button to do so is right there. Well my script here doesn't have quite as many bells and whistles as that script but you can easily modify this script to do everything that theirs can do and more without having to buy anything.

Buy Now Hover Button