Guide to method arguments in Ruby

In this section, we will examine the various ways to pass arguments to methods in Ruby programs, including the following:

• The argument syntax
• Named arguments
• Default argument values

What are method arguments?

Before we can get into the code examples, let's first walk through what method arguments are. Let's begin with a real-world example:

Imagine that you have a machine that makes baseball bats. The workflow for the bat making process would be as follows:

1. The raw wood is placed in the machine.
2. From there, the machine takes the wood, cuts, and polishes it.
3. Lastly, it finishes off by giving the output as the finished baseball bats from the machine.

So let's see how this analogy applies to the methods in Ruby:

• Method arguments: The raw wood placed inside the machine represents the method arguments. This is the data that can be provided by a user, a database query, an API, and so on. It is rare for a method not to have arguments, since method arguments are what allow...