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djberg96/crystal_compare_test.cr

Created February 5, 2021 16:55
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crystal_compare_test.cr
class Foo
include Comparable(self)
getter name : String
getter age : Int32
def initialize(@name, @age)
end
def <=>(other : self)
age <=> other.age
end
end
class Bar < Foo
end
f1 = Foo.new("Dan", 51)
b1 = Bar.new("Joe", 35)
p f1 > b1
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