title: Adding column in meanjs database
body: <p>the below code is the default structure of a <code>meanjs.org</code> database.  How can I add a new column like <code>Balance</code> in the mongodb? </p>
  
  <pre><code>{
      "_id" : ObjectId("597695d922fa1025a453ed39"),
      "salt" : "aGHDfk3+7Bg1lR8YI2JTAg==",
      "displayName" : "sample samples",
      "provider" : "local",
      "username" : "admins",
      "created" : ISODate("2017-07-25T00:50:33.800Z"),
      "roles" : [ 
          "user"
      ],
      "profileImageURL" : "modules/users/client/img/profile/default.png",
      "password" : "McRqjKUIzslHzCrg8VLyXXQZEZS/GqQyBewvI8xgutppYGvsexcbqf/ua9foennx6xy0unRiHrVAB7T1jF2v1Q==",
      "email" : "admin@admin.com",
      "lastName" : "samples",
      "firstName" : "sample",
      "__v" : 0 }enter code here
  </code></pre>