This week’s JavaScript news, issue 335

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JavaScript Weekly

Issue 335 — May 19, 2017

An Abridged Cartoon Introduction To WebAssembly
Lin Clark explains what exactly WebAssembly is, and what makes it fast.

Smashing Magazine

The Many Faces of Functions in JavaScript
A look at the various syntactic forms for functions in JavaScript. Stuff worth being familiar with.

Leo Balter and Rick Waldron

11 Talk Videos from JSConf EU 2017
Highlights include Jason Miller on Preact, a TC39 committee panel discussion, and Marja Hölttä on parsing JavaScript.


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Composing Software: An Introduction
This introduction to his series of functional programming posts highlights the importance of building software in a composable way. “A software developer who doesn’t understand composition is like a home builder who doesn’t know about bolts or nails.”

Eric Elliott

Stanchion: Priority Levels For Your App’s Network Requests
An application-aware network queue where requests are dispatched based on an assigned priority.

Alexander Wang

JavaScript Engines – How Do They Even?
Another talk from JSConf EU covers the basic concepts of compilers, challenges posed by modern JS, and how to write compiler-friendly JavaScript. 25 minutes.

Franziska Hinkelmann

Yarn Gets ‘Yarn Create’ Feature
With yarn create, you’ll be able to start building apps more quickly, e.g. with yarn create react-app app-name.

Maël Nison

JSON Feed: A JSON-Based Format for Web Feeds
A proposed format similar to RSS and Atom but in JSON. See the spec here.

Manton Reece and Brent Simmons


JavaScript Engineer @ Contentful (Berlin, Germany)The essential CMS for projects of any size, with flexible APIs and global CDN. We’re seeking experienced JS Engineers. Contentful

Full Stack Engineer – Hello Alfred (Alfred HQ/New York)We’re seeking a Senior Full Stack Engineer with 3 years experience to join our team and help develop our engineering philosophy. Hello Alfred

Frontend Traveler @ Backbase AmsterdamLooking for experienced Front-end Consultants – Amsterdam, international environment, travelling, newest technologies, innovation. Backbase Amsterdam

Can’t find the right job? Want companies to apply to you? Try
In Brief
Polymer 2.0 Released: The Web Components Library news Now with support for ES6 class-based syntax.Wendy Ginsberg
JQuery Mobile 1.5.0 Alpha 1 Released newsjQuery Foundation
ForwardJS Tickets on sale today news Attend full-day hands-on React workshops and dozens of talks at ForwardJS San Francisco this July.ForwardJS  Sponsor
The Hitchhiker’s Guide to d3.js tutorial Starting points and resources for upping your D3 game.Ian Johnson
json-api-normalizer: An Easy Way To Integrate the JSON API and Redux tutorialYury Dymov
Data Driven Vue.js: Creating Data-Driven Components with Vue tutorialDarren Jennings
ES Proposal: RegExp Lookbehind Assertions tutorialDr. Axel Rauschmayer
Building a Full-Sphere 3D Image Gallery with React VR tutorialSitePoint
3 Ways to Reduce Webpack Bundle Size tutorialJakob Lind
Analyzing React’s Source Code for Type Mismatch Operations tutorial Using a Babel plugin called Runtyper.Vitaliy Potapov
Optimizing AWS Lambda performance with MongoDB Atlas and Node.js See the performance implications of using Lambda functions with a database-as-a-service like MongoDB AtlasMONGODB  Sponsor
Using Test Driven Development To Write A Function (in 3 Minutes) videoKent C. Dodds
Martinet: A Simplified Build System Based on Webpack 2 tools For building static sites or single page apps.Iceroad
Godzilla: An ES2015 to Go(lang) Source Code Transpiler and Runtime tools A bit of an opposite to GopherJS.Jingwen Owen Ou
Rltm.js: A Universal API for Realtime Services toolsPubNub  Sponsor
LambStatus: A Serverless Status Page System code A server status page system built for use on AWS Lambda.Kishin Yagami
react-pdf: Create PDF Files using React code In browser or on the server. More like this in today’s React newsletter.Diego Muracciole
Delaunator: A Fast JS Library for Delaunay Triangulation of 2D Points codeMapbox
RxDB 4.0: A Reactive Client-Side Offline-First JavaScript Database code

Curated by Peter Cooper and published by Cooperpress.
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