Web Reference: Playing with Ruby code in interactive sessions like this is a terrific way to learn the language. Open up IRB (which stands for Interactive Ruby). If you’re using macOS open up Terminal and type irb, then hit enter. If you’re using Linux, open up a shell and type irb and hit enter. Ruby syntax cheat sheet covering variables, data types, operators, strings, conditionals, loops, methods, blocks, classes, and modules. A concise Ruby basic syntax reference for everyday use. What is a variable? Working with variables. That pesky newline! What is an array? What is a hash?
YouTube Excerpt: Who invented Ruby? - Who invented Ruby on Rails? - Ruby quickstart - Ruby basics tutorial - Which Startups
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How Do I Use Ruby Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $67M - $88M
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Last Updated: April 7, 2026
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