What if you could “copy-paste” code in multiple projects, and easily keep changes to source-code and dependencies synced?

The CSS background-image property allowed us to do some amazing things, but in most cases, it's time to leave it behind.

You might not know this, but JavaScript has stealthily accumulated quite a number of observers in recent times, and Intersection Observer is a part of that

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[Private class fields](https://github.com/tc39/proposal-class-fields#private-fields) are a [Stage 3 TC39 proposal](https://tc39.github.io/process-document/). Even though they're still experimental, you can use private class fields in Node.js 12 without flags…

Easily build beautiful video experiences into your Node app via the Mux SDK. Take any video file or live stream and make it play beautifully at scale on any device, powered by magical-feeling features like automatic thumbnails, animated gifs, and data-driven…

Node.js test runner that lets you develop with confidence 🚀 - avajs/ava

A service mock is code that simulates a service that is not yet available in order to test an application. In this guide, you will build two flexible service…

Switch from Medium to your own blog in a few minutes - mathieudutour/medium-to-own-blog

We dig into service worker events and how to use them.

It’s no secret that data is getting more and more accessible. Between websites monitoring visitor behavior, determining which products are…

The open source Git project just released Git 2.22 with features and bug fixes. Here's our look at some of the most exciting features and changes introduced since Git 2.21.

An experiment that proves that automatic accessibility testing is only a first step and that manual testing is vital.