title: E QUERY [thread1] SyntaxError: identifier starts immediately after numeric literal @(shell) in 'mongodb'?
body: <p>my first mongodb query is executing perfectly while the second one the _id field is creatting some bug ?</p>
  
  <pre><code>for (var i = 1; i &lt;= 25; i++){db.mediafiles.insert({x : i,from_email: '123@gmail.com'})}
  WriteResult({ "nInserted" : 1 })
  
  for (var i = 1; i &lt;= 25; i++){db.mediafiles.insert({x : i,from_email: '123@gmail.com',_id:59193333aed3eb391e396a5d})}
  E QUERY    [thread1] SyntaxError: identifier starts immediately after numeric literal @(shell):1:90
  </code></pre>