title: mongodb descending ascending index
body: <p>I'm learning about mongodb index and I would like to ask a question. I read the documentation about mongodb index. But I don't undertand a thing.</p>
  <p>I have created a</p>
  <blockquote>
  <p>index price(-1)</p>
  </blockquote>
  <p>If I use a</p>
  <blockquote>
  <p>sort price(1)</p>
  </blockquote>
  <p>Does this sort use the index?</p>