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

You can also directly call [] also on a string(same as slice)

s = "Hey what's up @dude, @how's it going?"
start_index = s.downcase.index("@how")
start_index ? s[start_index..-1] : ""