OR operator with query builder in mongoose.js

Question

How do I do an 'OR' operator with query builder in Mongoose?

I tried something like this: Find a user by ID or Username but it didn't work.

User.findOne({})
      .where( '_id', 'username').equals(param)

Answer 1

Try something along those lines:

User.findOne({
     $or:[ 
       {'condition_1':param}, {'condition_2':param} 
     ]},
     function(err,docs){
       if(!err) res.send(docs);
     }
  });