In the eyes of ruby, 0 is true

Unlike many other languages, 0 isn’t qualified as false in an expression. For example :

  #0 is true, so the code gets here

To Ruby, only 2 things are false : false and nil. I should rather say : An instance of FalseClass and an instance of NilClass. Everything else is true. 0 is a Fixnum instance and therefore is considered to be true.
How ruby can return false when you write if(3>5) then? The answer is quite simple : It is false because 3>5 (or should I say 3.>(5)) returns an instance of FalseClass.
I thought it was something important to note as this unusual definition of truth can cause some headaches to the unwary…

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