JavaScript Reference

This section contains a complete reference of all the built-in JavaScript objects, along with their methods and properties. This section also contains an event reference and a reference of the top-level properties and functions that can be used on all of the built-in JavaScript objects. A reference to all of the HTML DOM objects are listed in the menu to the left.

JavaScript String Object

The String object is used to manipulate a stored piece of text.

For a complete reference of the properties and methods that can be used with the String object, go to our String object reference.

The reference contains a brief description and examples of use for each property and method!

JavaScript Date Object

The JavaScript Date object is used to work with dates and times. 

For a complete reference of the properties and methods that can be used with the Date object, go to our Date object reference.

The reference contains a brief description and examples of use for each property and method!

JavaScript Array Object

The JavaScript Array object is used to store a set of values in a single variable name. 

For a complete reference of the properties and methods that can be used with the Array object, go to our Array object reference.

The reference contains a brief description and examples of use for each property and method!

JavaScript Boolean Object

The JavaScript Boolean object is an object wrapper for a Boolean value. 

For a complete reference of the properties and methods that can be used with the Boolean object, go to our Boolean object reference.

The reference contains a brief description and examples of use for each property and method!

JavaScript Math Object

The JavaScript Math object allows you to perform common mathematical tasks. It includes several mathematical constants and functions.

For a complete reference of the properties and methods that can be used with the Math object, go to our Math object reference.

The reference contains a brief description and examples of use for each property and method!

JavaScript Number Object

The JavaScript Number object does not allow you to set specific number types (like integer, short, long or double). In JavaScript all numbers are 64bit floating point numbers and have a number range from 5e-324 (negative) to 1.7976931348623157e+308 (positive).

For a complete reference of the properties and methods that can be used with the Number object, go to our Number object reference.

The reference contains a brief description and examples of use for each property and method!

JavaScript Top-level Properties and Functions

The top-level properties and functions that can be used on all of the built-in JavaScript objects.

For a complete reference of the properties and functions that can be used with all the JavaScript objects, go to our Top-level reference.

The reference contains a brief description and examples of use for each property and function!

JavaScript Events

New to HTML 4.0 was the ability to let HTML events trigger actions in the browser, like starting a JavaScript when a user clicks on an HTML element.

For a complete reference of all the event attributes, go to our Event reference.

The reference contains a brief description and examples of use for each event!

HTML DOM Objects

In addition to the built-in JavaScript objects, you can also access and manipulate all of the HTML DOM objects with JavaScript.

The HTML DOM defines a standard set of objects for HTML, and a standard way to access and manipulate HTML documents.

For a complete reference of all the DOM objects, go to our DOM reference.

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