javascript - Access variables passed from Jade files in another jade file -

i have nodejs project integrated mongodb. here have created jade file have student list taken database. against each student record, there edit button. when user clicks on edit button, needs redirect user jade(editstudent.jade) file that'll display form user can edit student's record.

in order accomplish this, have created following table in studentlist.jade file.

studentlist.jade

extends layout  block content     h1.         student list      table         tr             th.                 name             th.                 age             th.                 contact             th.                 edit student             th.                 delete student         each student, in studentlist             tr                 td(id='studentname') #{student.name}                 td #{student.age}                 td                      a(href="mailto:#{student.email}")=student.email                 td                      button(onclick='editstudent("#{student.name}")')= "edit"                 td                      button(onclick='removestudent()')= "remove"     script.         function editstudent(gh) {             alert("edit "+gh+"'s profile");             window.location.href = '/editstudent?gh=' + gh;         } 

output

when clicking on edit button passes name argument & pops alert follows.

pop alert

and display name title of editstudent page calling index.js

index.js

var express = require('express'); var router = express.router();  /* home page. */ router.get('/', function(req, res, next) {   res.render('index', { title: 'express' }); });  /* student welcome page. */ router.get('/studentindex', function(req, res, next) {   res.render('studentindex', { title: 'student portal' }); });  /*get studentlist page */ router.get('/studentlist', function(req, res) {     var db = req.db;     var collection = db.get('studentcollection');     collection.find({},{},function(e,docs){         res.render ('studentlist', {         "studentlist" : docs});     }); });  /* editstudent page */ router.get('/editstudent', function(req, res) {     res.render('editstudent', { title : gh}); });  module.exports = router; 

but getting error mentioning that

gh not defined

editstudent.jade

extends layout  block content     h1 = title     p welcome editor      button(onclick = 'backtolist()')="back"      script.         function backtolist() {             window.location.href = '/studentlist'         } 

any suggestions on how can pass variable redirected page(editstudent.jade) appreciated.

you should read gh request path, because you're sending in path: /editstudent?gh=' + gh

router.get('/editstudent', function(req, res) {     let gh = req.query.gh;     res.render('editstudent', { title : gh}); });