Node Cookbook - Third Edition

Profiling for production

When measuring performance, we want the measurement to be relative to a production system. Modules may behave differently in development for convenience reasons, so being aware that this behavior can confound our results can prevent hours of wasted developer time.

Let's see how environment disparity can affect profiling output.

First, we'll install Jade:

$ npm install -g jade 

Next, we'll update our server.js code:

const express = require('express')const path = require('path')const app = express()app.set('views', path.join(__dirname, 'views'));app.set('view engine', 'jade');app.get('/hello', (req, res) => {  res.render('hello', { title: 'Express' });})app.listen(3000)

We've set up Express to use the views folder for ...