Ni

Nil in Ruby

2 exercises

About Nil

Nil is an English word meaning "nothing" or "zero". In Ruby, nil is an object which is used to express the absence of a value. In other programming languages, null or none values may play a similar role.

# I do not have a favorite color
favorite_color = nil

Ruby gives any instance variable the default value of nil when it is first encountered, until it is set otherwise.

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