title: JSONModel: How to merge with existing data when calling "loadData"
body: <p>I have the following coding in my SAP UI5 application Controller:</p>
  
  
  
  <pre class="lang-js prettyprint-override"><code>var myView = this.getView();
  var data1 = { "myDate": new Date() };
  oModel.loadData("products.json");
  oModel.setData(data1);
  myView.setModel(oModel);
  </code></pre>
  
  <p>Where <em>products.json</em> - just a simple data for the table on the screen.</p>
  
  <p>And I can see only <em>products.json</em> data on the screen as a result, and <em>myDate</em> with empty value inside <code>oModel</code> (checked in debug).</p>
  
  <p>In case I comment <em>loadData</em> string, <em>myDate</em> value is on the screen and looks good.</p>
  
  <p>How I can use them together? What is the best practice for such cases?</p>