Installation
If you do not have node installed, visit: http://nodejs.org/download/.
There is also an installation guide on the node GitHub repository wiki if you prefer not to or cannot use an installer: https://github.com/joyent/node/wiki/Installation.
Let's install Express globally:
npm install -g express
Tip
Download the source code for this book here: https://github.com/AndrewKeig/advanced-express-application-development.
If you have downloaded the source code, install its dependencies by running this command:
npm install
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