JavaScript Weekly - 458 OCTOBER 11, 2019 · Retrospectiva na Tecnologia

#458 — October 11, 2019

roughViz.js: Create Hand-Drawn Styled Charts in the Browser — Supports bar, donut, line, pie and scatter charts for now and uses Rough.js under the hood which provides the same sort of thing for drawing shapes generally.

Jared Wilber

A Closer Look at Top-Level await — Two weeks ago we mentioned that V8 is adding support for ‘top level’ await – here, you can learn a bit more about what it means at a practical level, some use cases, and how it works in modules too.

Myles Borins

New Course: Hard Parts of Functional JavaScript Fundamentals 🧡 — Explore the increasingly popular paradigm of functional programming in JavaScript. Go under the hood of powerful techniques like: Higher Order Functions, Function Composition, Pure Functions, and Immutability of State.

Frontend Masters sponsor

is-website-vulnerable: Find Known Vulnerabilities in a Site's Frontend Libraries — This is a neat tool, especially as npx lets you run it right now as simply as npx is-website-vulnerable http://..... Give it a try on your own site.

Liran Tal

Vue Next: A Sneak, 'Pre-Alpha' Peek at Vue.js 3 — This isn’t for production or anything but if you want to get a feel for what Vue.js 3.0 is going to be like, this is the codebase for you.

Vue.js

Reasons to Learn Redux as a JavaScript Developer — “I believe Redux makes everyone a better JavaScript developer,” says the author who is clearly a fan of the popular state management approach.

Robin Wieruch

The JS13kGames Winners — Js13kGames is a frequent JavaScript coding competition with a total file size limit of 13KB. A few weeks back, we linked to all 245 entries but now there are winners. It blows me away just what you folks are making and these games are fun to play.

Js13kGames

💻 Jobs

React JS Developer (Remote) — We’re looking for an ambitious React developer to help us make komoot the place to go to plan outdoor adventures.

KOMOOT

It’s Not Rocket Science . . . or Is It? — Our client is looking for a programmer with out-of-this-world skills and an attention to detail that would make NASA sit up and take notice.

CareersJS

Find A Job Through Vettery — Vettery specializes in tech roles and is completely free for job seekers. Create a profile to get started.

Vettery

📘 Articles & Tutorials

JavaScript Naming Conventions — An introduction to ‘common sense’ conventions around naming variables, classes, functions, and more.

Robin Wieruch

Build a Dependency Graph Profiler in JavaScript — Sadly the code is just giant screenshots, but it’s neat to see an approach to doing this.

Chidume Nnamdi

Build a Customizable JavaScript Data Grid in Minutes — Create a JavaScript data grid in under 5 minutes. You'll also find resources for building in Angular, Vue, and React.

Wijmo by GrapeCity sponsor

Face Detection Using face-api.js — face-api.js is built on top of Tensorflow.js and provides us with face detection, face recognition and face landmark detection features.

Deepak Gupta

The V8 Engine and JavaScript Optimization Tips — Bear in mind that a problem with such tips can be that V8 eventually optimizes a previously slow case and your ‘optimized’ approach is then slower than the old way :-)

Paul Ryan

Quick Intro to Using Svelte to Create a Native Mobile App — Considerations involved in building a native app using the Svelte framework with NativeScript.

Rob Lauer

Retro Nostalgia and Why My New Website Looks Like Windows 98 — This developer was feeling “particularly nostalgic for the days of Geocities and floppy disks” so created a new (well-realised) Windows 98-style personal site paying homage to such an ‘idealized past’. Here’s the Preact-based UI library behind it.

Ash Kyd

How to Build Application Search with React and Elastic App Search

elastic.co sponsor

Making the switch => object Pattern Work in TypeScript

Maxwell Burson

17 Examples of Using Array and Object Destructuring

Rajnish Rajput

🔧 Code & Tools

Sinuous: A(nother) Small, Fast, Reactive UI Library — After all, you never know what’s going to be the next React.. This does have a nice feel to it though and was built to be used in Vimeo’s video player.

Wesley Luyten

React Hook Form: Simple, Extensible React Form Validation — It’s not just an interesting project, but it has one of the best project homepages I’ve seen too, complete with code comparisons with similar libraries. GitHub repo.

Blue Bill

A Much Faster Way to Debug Code Than with Breakpoints or console.log — Wallaby catches errors in your tests and code and displays them right in your editor as you type, making your development feedback loop more productive.

Wallaby.js sponsor

Moveable: A Library for Dragging, Resizing, Scaling and More — If you want to manipulate an element in any way (warping, pinching, rotating, etc) this library can probably help. Demo here.

Daybrush (Younkue Choi)

Library Detector: A Chrome Extension That Detects JavaScript Libraries — A browser extension that detects a variety of different frontend libraries and frameworks. Open source or installable here.

John Michel

Ferrum: Get Some Rust Features in JavaScript — If you’ve been charmed by the Rust language, this brings a few of its ideas back to JavaScript, including traits and lazy sequence processing.

Adobe, Inc.

vue-treeselect: A Multi-Select Vue.js Component with Nested Options Support

Fangzhou Li

⚡️ Quick Releases

Nock 11.4 — HTTP server mocking in Node.js.
XMPP.js 0.8 — XMPP client library.
ML.js 5.1 — Machine learning tools.
TUI Grid 4.6.0 — Powerful grid control.