How to count the number of days off between two dates in Ruby?

Question

ruby

Actually the subject, you need to calculate the number of Saturdays and Sundays between two dates

Answer 1

Возможно кому-то пригодится, пример
((Date.today - 14)..(Date.today) ).group_by(&:wday)[1].size

Answer 2

Можно написать с помощью изящных руби методов

require 'date'

timerange = Date.parse('2016/01/01')..Date.parse('2016/08/13')
days = 0

timerange.each { |d| days += 1 if  d.sunday? or d.saturday? }

# days => 65