FAQ: Thith Meanth War! - Setting Up the 'Else' Branch

This community-built FAQ covers the “Setting Up the ‘Else’ Branch” exercise from the lesson “Thith Meanth War!”.

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HI! I used the code as below, to substitute “s” with “th” but when user input has an “s” it was not changed on screen to a “th” did I do something wrong or was it not supposed to change onscreen?


print "Pleathe enter a thtring: "
user_input = gets.chomp

if user_input.include? “s”
puts “Well, thakth for nuthin!”

When using the bang method, we need the user to include at least one uppercase letter else user_input will become nil. That will raise an exception when this line is encountered…

if user_input.include? "s"

since nil has no attribute, include.

To get around this, either enter user_input as uppercase or do not use the bang method.

user_input = gets.chomp.downcase
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Thanks for the help .

1 Like


You did not include a space between (, and ")

Try, user_input.gsub!(/s/, “th”)