JavaScript By Example

This is one of the two static objects built into JavaScript. You don’t create your own objects based on the Math object, instead you simply use the properties and methods that it provides directly. A range of mathematical functions are available as methods of the Math object as well as a few numbers such as [...]

This is another of the most useful built in objects in JavaScript. An array provides you with the means to group variables together in a specific order and access them by number. The JavaScript Array object also provides a selection of methods for manipulating arrays allowing you to effectively add or remove entries easily at [...]

The Date object provides you with an easy way to perform all of your date processing without having to do the basic date manipulations yourself. The date object stores all dates and times in an internal format that makes adding, subtracting, and comparing easy as the methods provided for extracting the parts of the date [...]

While the Boolean object is not all that useful at all the Object object is the foundation on which all of the objects in JavaScript (with the exception of the Date object) are built.

Once you understand the basic syntax of the core JavaScript language, it is time to move on to look at various aspects of the core language in more detail. We’ll start by working our way through the various objects built into JavaScript. Some of these objects are more useful than others. A couple are static [...]