title: Bulk Remove with Mongoose
body: <p>I try to remove more than one document with mongoose.</p>
  
  <p>I've try something like this.</p>
  
  <pre><code>const result = await Order.remove({id: {$in: req.body.id}});
  </code></pre>
  
  <p>But, it doesn't work!</p>
  
  <p>The output of <code>req.body.id</code> is <code>array</code>.</p>
  
  <p>To make sure that <code>req.body.id</code> is an array. I try something like this:</p>
  
  <pre><code>req.body.id.constructor === Array
  </code></pre>
  
  <p>and the output is <code>true</code></p>
  
  <p>What is wrong?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Here is my req.body.id : <code>[ '5ab0a359672f32ad94c5aa2d', '5ab0a3d25e7bef513cd882ff' ]</code> </p>