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dwarring/gist:6757601

Created September 29, 2013 23:46
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gistfile1.txt
# In the following Ruby code `xx -5` is treated as a method call,
# `yy -5` as an arithmetic expression.
#
def xx(n) ; 37 - n; end
puts xx -5 # output is 42
yy = 37
puts yy -5 # output is 32
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