How do I remove all characters in a string until a substring is matched, in Ruby?

Question

Say I have a string: Hey what\'s up @dude, @how\'s it going?

I\'d like to remove all the characters before@how\'s.

Answer 1

>> "Hey what's up @dude, @how's it going?".partition("@how's")[-2..-1].join
=> "@how's it going?"

Case insensitive

>> "Hey what's up @dude, @HoW's it going?".partition(/@how's/i)[-2..-1].join
=> "@HoW's it going?"

Or using scan()

>> "Hey what's up @dude, @HoW's it going?".scan(/@how's.*/i)[0]
=> "@HoW's it going?"