What's the most efficient way get the first day of the current month?

Question

With ruby I\'m trying to get format a date as such: 2009-10-01

Where I take the current date (2009-10-26) and then change the day to \"01\".

I know of ways to do

Answer 1

If you need the date object without ActiveSupport, you can go back to the last day of the last month and sum 1.

Date.today - Date.today.mday + 1