i am using below code...but if Status is Empty iss show below result in database...i want to remove if Status is Empty ..

1 Address {}, Status {} save in database.

function CheckStatus(oldJob, newJob) {
  var obj = {};
  if(newJob && newJob.Status) { 
   obj.Status= {}; 
    if (oldJob.Status.total !== newJob.Status.total) {
      obj.Status.total = newJob.Status.total;
    }
    if (oldJob.Status.charge_description && oldJob.Status.charge_description !== newJob.Status.charge_description) {
      obj.Status.charge_description = newJob.Status.charge_description;
    }
  }
}

Mongodb

 "Job" : {
        "_id" : ObjectId("5873b352e7621d08fccc5890"),
        "updated_by" : "",
        "details" : "{\"current_status\":\"Completed\",\"address\":{},\"Status\":{}}",
        "changetype" : "Update",
        "datetime" : ISODate("2017-01-09T15:59:14.202Z")
    },

please help how what enter in If Condition ( below code not working)

 if(obj.address = '{}')
  {
   console.log('Empty');

  }