Ruby fails to detect newline character in a string

Question

I have the following string and I want to detect the newline character there. But the Ruby's string method include? fails to detect it.

I am running Ruby 1.9.2p290. Where am I going wrong there?

"/'ædres/ \nYour ".include?('\n')
 => false 

Answer 1

\n needs to be in a double quoted string, otherwise there'll be no escaping.

>> "\n".include? '\n'
=> false
>> "\n".include? "\n"
=> true