node.js - In node js how to get the result of the other module method in current module -

moduletwo.js

exports.getnotificatiosbyid = function (notificationid) {  db.get(notificationid, function (err, doc) {     if(!err){      return true;     }  });   }; 

in modulelone need result of moduletwo method.if moduletwo method doesn't have database query function means can method result below in moduleone

   var res=require('./lib/moduletwo').getnotificatiosbyid; 

if db.get method has synchronize method means can query

  db.getsync(id); 

is there other way result of moduletwo method.now i'm trying below.is correct

moduleone.js

     var moduletwo=require('./lib/moduletwo');       moduletwo.getnotificatiosbyid(id,function(err,res){         if(!err){           console.log('result of 2nd module '+res);         }      }); 

you need change getnotificatiosbyid take callback

exports.getnotificatiosbyid = function (notificationid,callback) {  db.get(notificationid, function (err, doc) {    if(!err){      callback(doc);      return true;     }  });   }; 

then call like

 var moduletwo=require('./lib/moduletwo');   moduletwo.getnotificatiosbyid(id,function(res){       console.log('result of 2nd module '+res);  });