See How Much Your APM is Costing You to Monitor Node.js Apps

We are excited to share the release of our new Cost Calculator to showcase just how much the wrong APM provider can add to your cloud hosting costs (try it now). Observability is vital, but it comes with computational overhead that shares the same infrastructure as your application. This is compounded in typical Node.js APM …

Ways to serve up less JavaScript

#​659 — October 19, 2023 Read on the Web JavaScript Weekly ApexCharts: Interactive Charting and Dataviz Library — A mature and frequently updated charting library for building interactive data visualizations, whether with sparklines, heatmaps, line charts, funnel charts, pies, and others. There are many visual demos and code samples – or check out their homepage. Juned …

Fluid simulation in JavaScript

#​658 — October 12, 2023 Read on the Web ✍️ Due to being on the road at an event, this is a more compact and bijou issue but I’m back at full pace next week 😅__Peter Cooper, your editor JavaScript Weekly Speeding Up the JS Ecosystem: The Barrel File Debacle — Marvin continues his tour …

Comparing test assertion styles in JavaScript

#​657 — October 5, 2023 Read on the Web JavaScript Weekly An Interactive Intro to CRDTs — Conflict-free replicated data types (the so-called CRDTs) provide a popular approach to replicate data across numerous clients and allow live collaboration between them without conflicts. This post really digs into what makes CRDTs tick well, complete with interactive examples. …

Getting some closure

#​656 — September 28, 2023 Read on the Web JavaScript Weekly The Saga of Google’s Closure Compiler — Dan looks back at Google’s Closure Compiler, a JavaScript transpiler Google built in 2004 and used most heavily in the pre-TypeScript era to reduce the size of JavaScript files, check types, and otherwise handle common pitfalls. A …

Microsoft spills the tea on TypeScript

#​655 — September 21, 2023 Read on the Web JavaScript Weekly ▶  TypeScript Origins: The Documentary — You know you’ve made it when you get your own documentary! This has just dropped but is well produced, packed with stories from TypeScript’s co-creators, users, and other folks at Microsoft, and kept me entertained. It goes particularly deep …

JavaScript, ML and LLMs

#​654 — September 14, 2023 Read on the Web JavaScript Weekly Bun 1.0: Is It a Toolkit? Is It a Runtime? It’s Both — You’ve used Node, you’ve seen Deno, now Bun has grown up too. It’s a performance-oriented server-side JS runtime built atop JavaScriptCore and makes the unique claim of being “a drop-in replacement …

TypeScript 5.2, Node 20.6, and Astro 3.0

#​653 — September 7, 2023 Read on the Web 😅 We’re back! After two weeks enjoying the blistering desert heat of Las Vegas and downpours of Storm Hilary, I’m ready to get back to the weekly JavaScript roundups – fingers crossed we’re here each week till Christmas now 🙂__Peter Cooper and the Cooperpress team JavaScript Weekly …

Advancing the NodeSource Node.js Package Repo (Including User-Requested Upgrades!)

For over a decade, NodeSource has developed and maintained a Node.js package repository that, has become the standard for production use globally. We are excited to announce some significant updates to this repo that include a large number of items related to user requests. (Note that there is an important point in the section below …

We’re taking a few weeks off, but..

#​652 — August 17, 2023 Read on the Web 🏝️ I’m taking two weeks off and will be back on Thursday, September 7. So if you don’t see the newsletter turn up for a while, it’s our fault 😉 As I’ve had to produce much of this issue a few days in advance, I’m mixing in …