Method: Week#-

Defined in:
lib/sixarm_ruby_week/week.rb

#-(other) ⇒ Object

Subtraction: week - other => week or integer

If the other is a numeric value, return a week object pointing other weeks before self.

If the other is a week object, then return the difference between the two weeks.

Example:

week = Week.new(date)
week - 3 => three weeks earlier

Example:

a =  Week.new(date)
b =  Week.new(date + 21)
b - a => 3

Return:

* [Week]



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# File 'lib/sixarm_ruby_week/week.rb', line 263

def -(other)
  if other.is_a? Numeric
    return Week.new(date - (other * 7))
  elsif other.is_a? Week
    return ((self.date - other.date) / 7).round
  else
    raise TypeError
  end
end