Question

I have a class that has two params: start_date and end_date.

Those are formatted like – 2012-07-12 and 2012-07-24.

I was to subtract end_date from start_date.

Previous Googling has left me high and dry. Should I convert these to something else to do subtraction?

Answer 1

Convert them into dates and subtract them:

require 'date'

start_date = Date.parse('2012-07-12')
end_date = Date.parse('2012-07-24')

(start_date - end_date).to_i

=> -12