ruby is method defined

Explanation of a Ruby Method

In Ruby, a method is a reusable block of code that performs a specific task. It is defined using the def keyword, followed by the method name, parentheses for optional parameters, and a block of code enclosed in curly braces or an end keyword. Here is an example of a Ruby method:

def greet(name)
  puts "Hello, #{name}!"
end

In this example, the method is named greet and takes a parameter name. The code inside the method is executed when the method is called. In this case, it prints a greeting message with the provided name.

To use the method, you can call it by its name followed by parentheses containing the arguments:

greet("John")

This will output: Hello, John!

Methods in Ruby can also have a return value. By default, a method returns the value of the last evaluated expression. However, you can explicitly specify a return value using the return keyword.

def add(a, b)
  return a + b
end

In this example, the add method takes two parameters a and b and returns their sum.

To call the method and use its return value, you can assign it to a variable:

result = add(3, 4)
puts result

This will output: 7

That's a brief explanation of how methods work in Ruby. Let me know if you have any further questions!