In this section of the course, we are going to talk about some regular expressions in Ruby. The goal of this lesson is to familiarize you with expressions in Ruby, and to give you the tools necessary to expand your knowledge. As always, we will learn with a practical example that you can use while doing real-time programming.

You're going to love this lesson as we are going to do a practical example with regular expressions. In this lesson, we are going to check if a particular string is a valid email address or not. In fact, I pulled this out of one of my applications in production to give you a hands-on feel of Ruby programming in a real world program.

Like the email address matcher guide, we are going to build an IP matcher in this lesson using Ruby and regular expressions. An example of how this could be used would be building a security block and want to verify or block IP addresses.

This is going to be a fun lesson as we are going to build a Wheel of Fortune guessing game using regular expressions and several other Ruby methods.