#   
## Overview

**Modules** are used to organize functions into a namespace, as well as define named and private functions.  

 Modules are not classes. In modules, we don't have constructors and destructors.
## Syntax
```
defmodule module_name do

   functions and other logic

end
```
## Example


#Module
defmodule Example do
  def greeting(name) do
    IO.puts "Hello #{name}."
  end
end
      Example.greeting "Elijah"


## Code explanation

In the code above, we see the following:

- In line 2,  we create a module `Example`. 

- In lines 3-5, we create a `greeting` function.

- In line 4, we set the logic of the function to output the greeting.


- In line 7, we call the `Example.greeting "Elijah"` that gives the greeting output.



Layering modules in Elixir allows us to namespace our functionality even more.


#Module
defmodule Example.Greetings do
  def morning(name) do
     IO.puts"Good morning #{name}."
  end
#function definition
  def evening(name) do
    IO.puts"Good night #{name}."
  end
end
Example.Greetings.evening"Elijah"

# 
## Code explanation

In the code above, we see the following:

- In line 2, we layer two modules `Example.Greetings`. 

- In lines 3-5, we create a `morning` function to print the message  "Good Morning".

- In lines 7-9, we create a `evening` function to print the message "Good Evening".

- In line 11, we call the `Example.Greetings.evening "Elijah"` that gives the greeting output.

What is the Elixir module? 

Modules organize functions into a namespace without constructors or destructors, enhancing functionality naming.