so i'm working along and i get an error with this code
print "Introduce yourself." user_input = gets.chomp user_input .downcase! if user_input .include? "s" #Notice the space between user_input and .include? print "Found an s!" end
codecademy tells me to make sure i call .include? on user_input, but i've done that. I read a couple QAs in here and see that no one else is using a space between user_input and .include? . I just don't understand why i can do it either way with .downcase! but not .include?