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JavaScript Express Basics Getting Started with Express Adding Multiple Routes to the App

Posted by Zach Freitag
Zach Freitag
20,341 Points

ReferenceError: response is not defined

"I'm running this on Atom:"

ReferenceError: response is not defined

app.js

const express = require('express');

const app = express();


app.get('/', (req,res) => {
  response.send('I love Treehouse!');
});

app.listen(3000);     // Sets up the development server

pacage.json

{
  "name": "multiple-routes",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "express": "^4.16.2",
    "nodemon": "^1.14.11"
  }
}

This is a review for me. The first time through I used Workspaces and everything worked fine. Today I am trying to get the same results on my own machine and I'm running into trouble.

  • node_modules - Installed
  • Express - Installed
  • Nodemon - Installed

Best vote get points =)

Cheers!

1 Answer

Joel Bardsley
Joel Bardsley
31,249 Points
Joel Bardsley
Joel Bardsley
31,249 Points 
app.get('/', (req,res) => {
  response.send('I love Treehouse!');
});

Response is not defined since you've called your arguments 'req' and 'res' for short, so you need to use res.send in this instance.

Zach Freitag
Zach Freitag
20,341 Points

By golly! I always miss the little stuff.

Cheers!