title: Is it possible to have multidimensional arrays in Ruby?
body: <p>I have an array that stores banned IP addresses in my application: </p>
  
  <p><code>bannedips = ["10.10.10.10", "20.20.20.20", "30.30.30.30"]</code></p>
  
  <p>I want to add more information to each banned IP address (IP address, ban timestamp, ban reason). </p>
  
  <p>How can I do this in Ruby?</p>