Creating Modules : Modules Creation « Language Basics « Ruby

Creating Modules


# To create a module, you use the module keyword. 
# You can place modules and the code that uses them in the same file, or break them out among separate files.

#file: mathematics.rb.
module Mathematics
  def Mathematics.add(operand_one, operand_two)

    return operand_one + operand_two
  end
end

file: sentence.rb
module Sentence
  def Sentence.add(word_one, word_two)
    return word_one + "" + word_two
  end
end

file: ModuleTest.rb
require 'mathematics'
require 'sentence'
puts "2 + 3 = " + Mathematics.add(2, 3).to_s

Related examples in the same category

1.	Modules and Namespaces
2.	Modules provide a structure to collect Ruby classes, methods, and constants into a single, separately named and defined unit.
3.	store classes inside modules.
4.	access methods inside classes inside modules with Ruby scope resolution operator (::)
5.	Involve demonstrating two classes with the same name, but in different modules
6.	how to create a module and then include it in a class.
7.	require the file containing the module, and then it would work (again, require is expecting a name in the load path).
8.	prefixed with the module name you can call the method from anywhere, as is the case with the Math module.
9.	Initializing Instance Variables Defined by a Module
10.	Abstract method in a module
11.	Use remove_const to delete a constant definition
12.	Avoiding Naming Collisions with Namespaces
13.	Print all modules (excluding classes)
14.	Print all classes (excluding exceptions)
15.	Print all exceptions