How do I get all Sundays between two dates in Ruby?

Question

I\'m working on a form where the user enters a date range and selects from a list of checkboxes a day/days of the week i.e Sunday, Monday, Tuesday, Wednesday, Thursday, Frid

Answer 1

fun one! :D

 start_date = Date.today # your start
 end_date = Date.today + 1.year # your end
 my_days = [1,2,3] # day of the week in 0-6. Sunday is day-of-week 0; Saturday is day-of-week 6.
 result = (start_date..end_date).to_a.select {|k| my_days.include?(k.wday)}

using the data above you'll get an array of all Mon/Tue/Weds between now and next year.