Quickly serving a directory using PHP, Node.js, or Python allows for quick testing with as little hassle as possible.  Imagine having to stand up apache or another server just to serve a directory — gross!  Since I had touched the three important languages, I looked to Ruby, a language I have very little experience with.

It turns out that serving a directory with Ruby is as easy as the other languages:

ruby -run -e httpd . -p 8080

The -p argument obviously represents the port, so hitting localhost:8080 will get you to the served directory!

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