Ruby: Nil

Following my previous posts with basic Javascript aspects, like context and variable hoisting, I’ll try to write some basic concepts of the Ruby language. I decided to start with something that usually confuses new Ruby users (sometimes they don’t even know that they are confused, by the way): the Ruby nil object. In Java we’re used to treat null as a special value or even a keyword. In Java, null holds a value which no valid point will ever refer to....

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