title: How to combine filter and map in Scala?
body: <p>I have <code>List[Int]</code> in Scala. The List is <code>List(1,2,3,4,5,6,7,8,9,10)</code>. I want to <code>filter</code> the list so that it only has even numbers. And I want to multiply the numbers with 2.</p>
  <p>Is it possible?</p>