title: adding three months to the current month in js
body: <p>I've used the following Javascript code to get the current year. </p>
  
  <pre><code>new Date().getFullYear()
  </code></pre>
  
  <p>what I want is to add three months to the current date and check whether the year changes! In java we can make this happen but I don't know how to do this javascript. How can I check this condition with javascript! </p>