Core Concepts Drills

Quick Index

Overview
The Drills
General Drill Notes
Submit
Reference Guide Modernizations and Notes
Troubleshooting

In this set of drills we'll play with Node.js core concepts. We'll most follow the w3schools reference and Wexler book (specific references provided).

NOTE WELL -- this work does assume you have Node.js installed. If you do not, our course book by Wexler (Lessons 1 or 2) provides guidance as well as the course notes here...

The Drills

General Drill Notes

Complete each of these short drills:

The terms module and package will be used somewhat interchangeably. We'll learn distinctions between the two as we advance.
The terms Node and Node.js will be used interchangeably.
The terms Browser, web browser and client will be used interchangeably

Submit

Create a ZIP archive file named in the normal way
Before archiving, please delete any project "node_modules" sub-directories (when present). Here is why...
Copy each project directory (from each drill) into the one archive
Please do not nest archives

Reference Guide Modernizations and Notes

The reference materials tend to compress code. As beginners, this can, in some cases, yield a "code blob" effect.

The course notes attempt to use more of an expanded code approach, to offer a different perspective.

Get Programming with Node.js (2019 - Wexler)

These:

npm install <package> -save
npm install <package> -S

Are now equivalent to:

npm install <package>

In other words, the "save" flag is now implicit (the default).

w3schools.com

The url method:

url.parse

is now deprecated, with WHATWG URL API. The guide example(s) will demonstrate.

Also, status codes (e.g. 200) are hard coded into the examples, but we prefer to derive them. The guide examples will demonstrate.

Troubleshooting

A quick sanity test to ensure npm is working

Introduction To Node.js (Chapter 802 - Core Concepts Drills)

CHAP801 < Core Concepts Drills > CHAP803

Chapter Top Search Site Contents