Node JS

Welcome to a quick tutorial and examples on how to read files in NodeJS. Reading files, just how difficult can it be? Well, brace yourselves. It’s not that straightforward apparently. The common ways to read files in NodeJS are: To read the entire file into a string asynchronously – require(“fs”).readFile(“FILE.TXT”, “utf8”, (err, data) => { […]

Welcome to a tutorial on how to crop images in NodeJS. In client-side (browser) Javascript, we have access to the Canvas API and can do all sorts of image yoga with it. But just how do we crop an image in NodeJS then? We can install and use the sharp image library to easily crop

Welcome to a tutorial on how to create a simple booking system with Javascript and NodeJS – Yes, this is pretty much a pure HTML, CSS, and Javascript project. Read on!     TABLE OF CONTENTS Download & Notes NodeJS Booking Extras The End   DOWNLOAD & NOTES Here is the download link to the

Welcome to a step-by-step tutorial on how to create a user login system in NodeJS. Yep, there are a ton of these “login tutorials” all over the Internet, so let’s do things a little differently in this one – There’s no database. So you guys who just want a simple login system can rest (somewhat)

Welcome to a tutorial on how to import an Excel spreadsheet with MySQL and NodeJS. So want to “put an Excel file into the database”? Well, it’s actually a simple process of “read the Excel file” and “insert into database”. Read on for the example!     TABLE OF CONTENTS Download & Notes Import Excel

Welcome to a tutorial on how to create a restaurant food ordering system with Javascript. Yes, you read that right, Javascript-only. There are no server-side databases, and only NodeJS is involved. But be warned, this is not a “complete ordering system”, but more of an experiment of mine to see how far we can go

Welcome to a tutorial on how to deal with category and subcategory in NodeJS. So you are working on a project that involves categories in NodeJS. But the question is, how do we deal with this exactly? Well, let us walk through a simple example – Read on!     TABLE OF CONTENTS Download & Notes

Welcome to a quick tutorial on how to check the NodeJS version. Need to check the current version of your Node installation? Or check if users meet the basic version requirement? To check the NodeJS version in the command line, run node -v. To get the NodeJS version during runtime – console.log(process.version); That covers the

Welcome to a tutorial on WebRTC with Javascript and NodeJS. Need to do a peer-to-peer connection with Javascript? Yes, that is possible. Allow me to simplify things and save you some time: One of the easier ways to handle WebRTC (peer-to-peer) is to use the PeerJS and PeerServer libraries. Create a PeerServer in NodeJS to

Welcome to a quick tutorial on how to upload files in NodeJS Express. So you may have just started with Express, and wondering how to handle file uploads? Well, it really isn’t too difficult, here is a very simple example – Read on!     TABLE OF CONTENTS Download & Notes NodeJS Express Upload Extras