Understanding the “||” OR operator in If conditionals in Ruby

Question

Just briefly, why are the following three lines not identical in their impact?

if @controller.controller_name == \"projects\" || @controller.controller_name          


        

Answer 1

The simple way to get a non verbose solution is

if ["a", "b", "c"].include? x

This actually has nothing to do with ||, but rather what values are considered to be true in ruby. Everything save false and nil is true.