In Chapter 6, Light Speed Unit Testing, we are going to see alternative solutions to test AJAX requests without the need for a server. And in Chapter 8, Build Automation, we are going to see how to use Node.js as a foundation for an advanced build system.
If you already have Node.js installed, you can skip to the next section.
There are installers available for Windows and Mac OS X. Perform the following steps to install Node.js: