Why TypeScript Enums Are Terrible But Union Types Are Great

A deep dive into the pitfalls of TypeScript Enums and the power of Union Types, or why I refactor all my Enums to Union Types.

Dr. Derek Austin

What Exactly is Node.js? A Guide for Beginners

If you're thinking about doing back-end development using JavaScript, you will hear the term ‘Node.js’. Node is often associated with developing powerful web servers.

Amazing Enyichi Agu

📌 Issue 33 / 06.09.2023


📄 Node v20.6.0 (Current) Released

As we teased last week, the latest Node release includes all-new built-in support for setting environment variables via .env files, so you may no longer have a need for dotenv, depending on your use case.

💡 If you just want to see a quick example of the .env feature in action, check this article.

JUAN JOSÉ AND THE NODE.JS TEAM


📄 My Node.js is a Bit Rusty..

The tale of how replacing a Node.js module with a native Rust module resulted in a 25x perf boost for Wix. Gal shows off the details of how it came about before concluding: “If something is too slow, profile it first, then encapsulate it, and then—perhaps—consider rewriting it in Rust.”

GAL SCHLEZINGER


❗️There are all sorts of bizarrely named npm packages being published, including things like @!-!- and --hepl, in an attempt to break tools and find new security vulnerabilities.


©️NODE.JS WEEKLY

🔥 JavaScript Sets are about to become a lot more useful with these 7 new methods:

.difference()
.intersection()
.symmetricDifference()
.union()
.isSubsetOf()
.isSupersetOf()
.isDisjointFrom()

Currently stage 3. Implemented in JavaScriptCore (Safari/webkit), being worked on in Chrome, and is totally polyfillable all the way back to ES3

Wes Bos

📌 Issue 34 / 07.09.2023


📄 Astro 3.0 Released: The All-in-One Web Framework

An increasingly popular, turbo-charged site generator comfortable with not just static sites, but dynamic and interactive ones too by way of its ‘islands’ approach.


🎉 RELEASES:

TypeScript 5.2 – Complete with the much awaited using declarations..

Node-RED 3.1 – The powerful low-code/visual programming environment gets some key improvements in its editor.

jq 1.7 – It's not JavaScript, but surely the best JSON processing tool to exist.

Ky 1.0 – Simple HTTP client based upon Fetch for browsers, Node & Deno.

jQuery 3.7.1 – Oh yes indeedy 🎉


©️JS WEEKLY