javascript - Trying to create a function nodejs express -

im trying create function dont use same code again , again keep getting internal error.i data , internal error if change need refresh page updated.i cant understand why error.here error

get http://localhost:3000/api/pages 500 (internal server error)

object {data: "", status: 500, config: object, statustext: "internal server error"}

code:

function get(some,that,res){    return some.find(function(err,that) {       if (!err) {         return res.send(that);       } else {         return res.send(500, err);       }    });     };  router.get('/pages', sessioncheck, function() {    get(page,pages,res); }); 

update: might doing wrong lets take start.how can create function dont reuse same code again , again.

router.get('/pages',  function(request, response) {          return page.find(function(err, pages) {             if (!err) {                 return response.send(pages);             } else {                 return response.send(500, err);             }         });     }); 

and here full code

var express = require('express'); var router = express.router(); var mongoose = require('mongoose'); var page= require('../models/page.js');     var bcrypt = require('bcrypt-nodejs');    function get(some,that,response){     return some.find(function(that,err) {         if (!err) {             return response.send(that);         } else {             return response.send(500, err);         }     });     };  router.get('/pages', sessioncheck, function(request,response) {     get(page,pages,response); }); 

router.method first call function sessioncheck. need call next() within sessioncheck call next function, in not defining parameters (typically define req, res).