--- title: Ruby Conditionals --- Ruby has several commonly used conditionals. ## If Statements An extremely common conditional in many programming languages, the statement tests if the condition is true, then branches into the specified action. An if statement consists of one `if`, any number of `elsif` and at most one `else` statement. * ```ruby fruit = :apple if fruit == :apple puts "Your fruit is an apple" elsif fruit == :orange puts "Your fruit is an orange" else puts "This is not an apple or an orange" end ``` ### Unless statement An unless statement is the opposite of an if statement. It is the same as a negated if statement. * ```ruby happy = true if !happy puts "This person is not happy" end ``` The above statement equal to the statement below * ```ruby unless happy puts "This person is not happy" end ``` ## Ternary Statement A ternary statement is used as a short conditional statement. It is written as follows * ```ruby game = "won" fans = game == "won" ? "happy" : unhappy fans # => "happy" ``` ## Case Statement A case statement is similar to an if/elsif/else statement * ```ruby fruit = :apple case fruit when :apple puts "Your fruit is an apple" when :orange puts "Your fruit is an orange" else puts "This is not an apple or an orange" end ```