title: Detect any change in localStorage?
body: <p>Is there any way to detect any change in HTML5 localStorage and then call certain functions if there is any change indeed?
  I have certain keys stored with names as "e1", "e2", "e3", and so on...</p>
  
  <p>i want to detect if any key is removed or added and then trigger some functions if there is any change...</p>