How to get today's day of previous month in ruby?

Posted by Horace Ho on Stack Overflow See other posts from Stack Overflow or by Horace Ho
Published on 2010-05-10T03:22:28Z Indexed on 2010/05/10 3:28 UTC
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Is there a built-in function to get the day in last month, same as today? Examples:

2010/05/02 -> 2010/04/02
2010/05/15 -> 2010/04/15
2010/05/31 -> 2010/04/30

Thanks!

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