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scalp42/overloading.cr

Created October 29, 2017 20:04
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Multiple types overloading
Raw
overloading.cr
def add(x : Number, y : Number)
x + y
end
def add(x: Number, y: String)
x.to_s + y
end
# vs
def add(x : Number, y : [Number, String])
if y.is_a?(String)
x.to_s + y
else
x + y
end
add(1, 2)
add (1, "a")
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