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Exploring the Flexibility of Ruby Method Arguments: A Deep Dive
Ruby, known for its elegance and flexibility, offers various ways to define method arguments, catering to different needs and scenarios. This article will guide you through the different types of arguments in Ruby, providing examples to illustrate their use and benefits.
Basic Arguments
Basic or positional arguments are defined in the order they are expected to be received. They are straightforward and commonly used in Ruby methods.
def sum_numbers(num1, num2, num3)
puts num1 + num2 + num3
end
sum_numbers(1, 2, 3)
# => 6
You can assign default values to these arguments:
def sum_numbers(num1, num2 = 2, num3 = 3)
puts num1 + num2 + num3
end
sum_numbers(1)
# => 6
Explicit Named Arguments
Keyword arguments in Ruby methods allow you to name your arguments, making the method calls more readable and self-explanatory.
def introduce_person(name:, age:)
puts "Meet #{name}, who is #{age} years old."
end
introduce_person(name: "John", age: 28)
# => Meet John, who is 28 years old.