title: Interpolation within single quotes
body: <p>How can I perform interpolation within single quotes?</p>
  
  <p>I tried something like this but there are two problems.</p>
  
  <pre><code>string = 'text contains "#{search.query}"'
  </code></pre>
  
  <ol>
  <li>It doesn't work</li>
  <li><p>I need the final string to have the dynamic content wrapped in double quotes like so:</p>
  
  <pre><code>'text contains "candy"'
  </code></pre></li>
  </ol>
  
  <p>Probably seems strange but the <a href="https://github.com/datasift/datasift-ruby" rel="noreferrer">gem</a> that I'm working with requires this. </p>