How to check string contains special character in ruby

Question

How to check whether a string contains special character in ruby. If I get regular expression also it is fine.

Please let me know

Answer 1

Use str.include?.

Returns true if str contains the given string or character.

"hello".include? "lo"   #=> true
"hello".include? "ol"   #=> false
"hello".include? ?h     #=> true