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Uche Onuekwusi17,192 Points
Scope of the methods in ruby
How were you able to access the price per unit variable created inside the scope of the conditional statements?
Steven Parker224,848 Points
A conditional doesn't constitute a separate scope, and a local variable defined inside a method (and not in a loop) can be accessed throughout the method.
This might not be the case in other languages, so if you're already familiar with any other(s) be careful to avoid confusing their rules.