title: Conditional binding with AngularJS, concatenate and bind value if property is not empty
body: <p>I am new to Angular and am trying to bind a string to a model if the value !== empty. This work for one input, but I would like to combine multiple text inputs into one string. </p>
  
  <pre><code>&lt;input type="text" ng-model="data.source"&gt;
  &lt;input type="text" ng-model="data.medium"&gt;     
  
  &lt;span ng-show="data.source"&gt;&lt;h3&gt;{{'additionToSource' + data.source}}&lt;/h3&gt;&lt;/span&gt;
  &lt;span ng-show="data.medium"&gt;&lt;h3&gt;{{'additionToMedium' + data.medium}}&lt;/h3&gt;
  </code></pre>