Cable Ready - use websockets in Rails app without custom JavaScript

Cable Ready is a great addition for Action Cable, especially if you don't like to write JavaScript code to interact with your website's DOM in a real-time. It helps us to quickly write real-time applications that work out of the box.To demonstrate the features that the gem provides, we will build a simple chat where new messages will appear on the website without reloading. We will start with creating a brand-new Rails application, creating a little code, adding the Cable Ready gem, and making things real-time.