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Instance Public methods

Returns a date object pointing n months before self. The n should be a numeric value.

Date.new(2001,2,3) << 1   #=> #<Date: 2001-01-03 ...>
Date.new(2001,1,31) << 11 #=> #<Date: 2000-02-29 ...>
Date.new(2001,2,3) << -1  #=> #<Date: 2001-03-03 ...>

doc_ruby_on_rails

2015-04-02 12:20:25

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