Why I getting this 'res.render() is not a function'

Question

I am trying create a route, but I getting this error.

res.send is not a function

And my code in the index.js file it is this way

var express = require('express');
var router = express.Router();

router.get('/', function(res, req, next){
 res.render('index');
});

module.exports = router;

And in the app.js file is that way

var index = require('./routes/index.js');
...
...
...
app.get('/', index);

Thank you, since already.

Answer 1

It looks like you've swapped req and res in your router.get callback. Thus, what you've named req is actually res, and vice versa, and req.render does not exist.

Try changing:

router.get('/', function(res, req, next){

to:

router.get('/', function(req, res, next){

To avoid mixing these up in the future, try to remember that requests come before responses, in both HTTP and the alphabet.