title: Find all except one in mongodb
body: <p>I want to skip one user particular by using <code>_id</code> and display all others users, I am trying below code its not working:</p>
  
  <pre><code>db.user.find(
      { _id: { $nin: ["5848e9ecaec0f31372816a26"] } },
      { username: 1 }
  ).pretty()
  </code></pre>