title: Don't show null when concatenating strings in AngularJS
body: <p>A simple ng-bind like this</p>
  
  <pre><code>&lt;div ng-bind="author.Title.Value + ' ' + author.FirstName.Value + ' ' + 
  author.LastName.Value"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>results in </p>
  
  <blockquote>
    <p>Dr. null Franklin</p>
  </blockquote>
  
  <p>if <em>author.FirstName.Value</em> is null. </p>
  
  <p>Is there a <strong><em>simple</em> way to replace <em>null</em> by an empty string</strong> (I know I can concatenate this string in the controller and return something like <em>FullName</em>, but I'd prefer to do it this way).</p>