title: Grouping of data items based on common property
body: <p>I have a grid in kendo + angular where i need to display the data based on a group. For example: the response from service would return some thing like this </p>
  
  <pre><code>item 0 --&gt; Id 1, Name ABC, Age 20, Dept. XYZ, Date date1
  item 1 --&gt; Id 2, Name DEF, Age 90, Dept. LMN, Date date1
  item 2 --&gt; Id 3, Name TUV, Age 44, Dept. GHI, Date date2
  </code></pre>
  
  <p>The grid would show, 1st column -> Date; 2nd column -> Name - child column -> Age
  It has to be grouped by date. Even though my response has 3 items, i need to combine this based on the common date(in this case there will be 2 records, 1 for date 1 and 1 for date 2). 
  I have achieved this using the native foreach and index style of coding. It works fine. 
  But am looking for a more elegant way and minimal code.
  Any pointers will be very helpful.</p>
  
  <p>Thanks</p>