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nusco/nil_guard.rb

Created August 18, 2010 15:26
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Spell: Nil Guard
Raw
nil_guard.rb
# ================
# Spell: Nil Guard
# ================
# Override a reference to nil with an “or.”
x = nil
y=x || "avalue" # =>"avalue"
# For more information: http://www.pragprog.com/titles/ppmetr/metaprogramming-ruby
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