title: how to calculate the age of person using moment js?
body: <p>could you please tell me how to calculate the age of person using moment js ?
  I have two dates "DOB" and "current date" .i want to get difference between them to get age .</p>
  
  <p>Age like 15 year , 14 year ..</p>
  
  <p>here is my code
  <a href="http://plnkr.co/edit/1wIvVISmgEqcRNnAD971?p=preview" rel="nofollow noreferrer">http://plnkr.co/edit/1wIvVISmgEqcRNnAD971?p=preview</a></p>
  
  <pre><code>let DOB= "09-Feb-1983"
  console.log(moment(DOB, 'DD-MMM-YYYY', true).isValid())
  console.log(moment().format('DD-MMM-YYYY'));
  </code></pre>