title: meteor.js : find users by email
body: <p>In my meteor.js app, I'm trying to write a simple admin page which can find a user by his/her email address. </p>
  
  <p>I can see that in the Meteor.users collection there is an 'emails' array, which has objects like so </p>
  
  <pre><code>{ address : 'foo@foo.com',
    verified : false
  }
  </code></pre>
  
  <p>Normally in Mongodb I can search inside this 'emails' array like so :</p>
  
  <pre><code>Meteor.users.find({ emails.address : 'foo@foo.com' });
  </code></pre>
  
  <p>But this query is throwing an error :</p>
  
  <pre><code>While building the application:
  client/admin.js:224:41: Unexpected token .
  </code></pre>
  
  <p>Aka Meteor doesn't like the nested query...</p>
  
  <p>Any ideas on how to query the Meteor.users collection by email address ?</p>