title: Yes or No instead of True or False in Knockout
body: <p>In Knockout is there a clean way to display a boolean property from my view model to show 'Yes' or 'No' instead of True / False. Sometimes the property is undefined so this should also show No.</p>
  
  <p>Currently using :</p>
  
  <pre><code>&lt;td data-bind="text: isAvailable ? 'Yes' : 'No'"&gt;&lt;/td&gt;
  </code></pre>
  
  <p>Must be a better way.</p>