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Ext JS 4 First Look by Loiane Groner

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Installing Ruby

Sass and Compass are Ruby gems, which are Ruby package managers. Prior to the installation of these gems, we need to install Ruby.

Windows and Mac OS

If you use Windows, go to http://rubyinstaller.org/ and download the latest version.

If you use Mac OS, you do not need to worry, because Ruby comes installed on Mac OS. However, on the Sencha website, they recommend that you install XCode (it installs all required dependencies); to install XCode, please go to http://developer.apple.com/xcode/.

Linux

If you use Linux, well, there are several Linux distributions available today, and the best way to install Ruby is to use the default package manager for the particular distribution that you use.

Ubuntu and Debian

Debian, Ubuntu, and other Debian-derived ...

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