title: Can't change string with Rails' String#camelize
body: <p>Ruby is not my normal language, and I'm struggling to get the following to work.</p>
  
  <p>I'm just working with an array.</p>
  
  <pre><code>irb(main):54232:0&gt; contact_data
  =&gt; ["3521", "xxxxxxxx@xxxxxx.com", "ADA JONES SMITH"]
  
  irb(main):54226:0&gt; contact_data[2].split.first.to_s.camelize
  =&gt; "ADA"
  </code></pre>
  
  <p>Why? and how do I convert the string to CamelCase?</p>
  
  <p>Thank you.</p>