May 2020 – C B

Different ways to invoke a method in Ruby

class Person
    def my_name
        “Diana"
    end
end

diana = Person.new

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class Person

def my_name

“Diana"

end

end

diana = Person.new

(Single run time) Using dot notation and calling the method on the object:

diana.my_name

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diana.my_name
(Persist name of method to database) Using send method:

diana.send(:my_name)

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diana.send(:my_name)
Get the method and call it like a Proc:

diana.method(:my_name).call

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diana.method(:my_name).call
Not good practice but useful sometimes. (Self-modifying method code):

eval “diana.my_name"

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eval “diana.my_name"