To get the opposite effect of if you can use the word unless: : unless « Statement « Ruby

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Ruby » Statement » unless   To get the opposite effect of if you can use the word unless: age = 24 puts "You're NOT a teenager" unless age > 12 && age < 20   Related examples in the same category 1.  Syntax of the full unless statement: 2.  unless statement simply operates in the logically reverse sense from the if statement 3.  unless can work in exactly the same way because unless is just the opposite of if:

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