Gems are libraries that you can use in your Ruby programs that provide extra functionality. There are a lot of gems in the Ruby ecosystem that cover all types of use cases. In this course, you'll learn about what gems are, how they are structured, and how to use them in your programs.
What you'll learn
When not fighting web crime, Jason Seifer is a teacher at Treehouse. He's passionate about the web and programming. You can find Jason on Twitter at @jseifer and on his personal blog at jasonseifer.com.
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