title: javascript event listener for changes in an object variable
body: <p>I have an object variable that has several properties.</p>
  
  <pre><code>MyVar = {"prop1" : 0, "prop2": 0....};
  </code></pre>
  
  <p>How do I write an event listener that listens for a change in any of the properties.</p>
  
  <p>Thanks for your suggestions.</p>