| #404 — September 21, 2018 | 
| JavaScript Weekly | 
| A surprisingly quiet week, though maybe it's due to it being issue 404 :-). Nonetheless, there have been a few major version releases, including Nuxt.js 2.0, Next.js 7, and Electron 3 — you'll find those down in the Code and Tools section. | 
| Idle Until Urgent: A Performance Strategy — When analyzing his site’s ‘first input delay’, Phil noticed all the JavaScript functions being run as the page loaded added up to a significant amount of time. His solution? Only run code in idle periods or when it’s truly, urgently required. Here’s a look at how that works in practice. Philip Walton | 
| Building a PWA with Angular 6 — A step-by-step walkthrough of building a progressive Web application using the latest Angular and its CLI tools. If you’ve kept away from Angular for a while, this could be a handy reintroduction. Ahmed Bouchefra | 
|   Real-Time Production Error Monitoring for JavaScript Apps — Rollbar automatically tracks all errors in your JavaScript apps and gives you the data & context to debug them fast. Works with Node, React, Vue, Angular, and more. Get unlimited errors during your free trial. ROLLBAR sponsor | 
| Array.prototype.reverse is Broken on iOS 12 — A rather sneaky bug has made it into WebKit where the  Stack Overflow | 
| Like JavaScript Weekly? Try Our Other Newsletters — We frequently chat with subscribers who didn’t realize we publish other newsletters. We do, over ten of them now :-) Including Frontend Focus, a serverless newsletter, MongoDB Weekly and Postgres Weekly. Cooperpress | 
| The Making of 'Underrun', a js13kGames Submission — Some notes on what it takes to build a WebGL shooter in just 13KB of total code and assets. Try the game here. And if you like this sort of explanation, there’s another about a game called Bellwoods by Matt DesLauriers. Dominic Szablewski | 
| Ruby's Hashes and Perl's Autovivification, in JavaScript — Applying concepts from Ruby, like default values, and autovivification (the automatic creation of new collections in place of undefined keys) from Perl in JavaScript. Reginald Braithwaite | 
| 💻 Jobs | 
| Sr. Back End Engineer - Node and Express (Orlando/San Diego/Remote) — You enjoy solving hard problems using technology and Postman is always open on your workstation. You have a GitHub repo with NPM packages. MJD Interactive | 
| Senior Product Engineer, Frontend at Hustle (San Francisco) — Hustle is a P2P text messaging platform. We're seeking a senior product engineer to join us in growing our engineering team, working on our core web and mobile products. Hustle | 
| Try Vettery — Create a profile to connect with inspiring companies seeking JavaScript devs. Vettery | 
| 📘 Tutorials and Opinions | 
| Three Features That Could Change the Future of JavaScript — A big ‘could’ though as the features are still being proposed and are under discussion. Willian Martins | 
| Ways to Think About Module Design — An excerpt from Mastering Modular JavaScript, a new book being released tomorrow. Nicolás Bevacqua | 
| Design a Custom Payment Form with Square's Payment Form Library Square Developer sponsor | 
| Build a Simple CRUD App with ASP.NET Core and Vue — If you’re on a .NET stack this might help you out. Ibrahim Šuta | 
| How to Build an Electron App with Okta-Powered Authentication — Electron is GitHub’s framework for building cross-platform desktop apps with Web technologies. Matt Raible | 
| Using Scoped Slots in Vue.js to Abstract Functionality Mateusz Rybczonek | 
| ▶ How to Sort Your Socks using JavaScript — A look at the sorting algorithms used by different JS engines and how they vary. Claudia Hernández | 
| 🔧 Code and Tools | 
| worker-plugin: Adds Native Web Worker Bundling Support to Webpack — Automatically compiles modules loaded as Web Workers. Google Chrome Labs | 
| Build News and Activity Feeds in Days Instead of Months — Stream is an API for building scalable news feeds. Try out the API in this 5-minute interactive tutorial. Stream sponsor | 
| Sublime Merge: A New Git Client from the Makers of Sublime Text Sublime HQ Pty Ltd. | 
| Nuxt.js 2.0: Webpack 4, ESM Modules, create-nuxt-app and More — Nuxt.js is a framework for creating universal Vue.js apps. Nuxt.js | 
| Next.js 7: A Framework for Server-Rendered React Apps — Now a lot faster and using Webpack 4 and Babel 7. Zeit | 
| Electron 3.0: The Cross Platform Desktop App Framework GitHub | 
| T-Writer: A Native 'Typewriter Effect' Library — If you want to reproduce the effect of text being typed in real time. Christopher Cavalea | 
| Build Real-Time Web Experiences with a Simple but Powerful Serverless Backend Microsoft sponsor | 
| WWWBasic: An Implementation of BASIC for the Web — As well as supporting writing BASIC directly in your HTML, it can also be used as a Node module. | 
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