title: jquery (or plain js) bind change event to properties of objects in an array
body: <p>i have an array of objects, and these objects all have an 'isvalid' attribute.</p>
  
  <p>Is there a way with JQuery or plain javascript to bind code to the event that the value of that property changes?</p>
  
  <p>So when i have an array with 10 objects, i want to  execute a function when the 'isvalid' property of one of the object changes.</p>
  
  <p>Is that possible?</p>
  
  <p>Michel</p>