title: How to detect which object in array has changed property value?
body: <p>I have an array of objects. User can change value of some property in that array of objects. What i want to detect which object has changed. I musing <code>iterableDiffer</code> but i dont know how to display only those that are changed. Any suggestion ?</p>
  
  <pre><code>   let changes = this.iterableDiffer.diff(this.workorders);
          if (changes) {
  
         }
  </code></pre>