This week's JavaScript news, issue 239

Eich on WebAssembly, TCO, native vs Underscore, a look at React's performance, and more. Read this e-mail on the Web JavaScript Weekly Issue 239 — July 3, 2015 Why We Need WebAssembly: Interview with Brendan Eich Eric Elliott discusses the details of the recently announced ‘WebAssembly’ with JavaScript’s creator. Eric Elliott Tail Call Optimization in ECMAScript 6 Axel goes into some depth to explain what TCO is, how ES6 offers it, and what benefits it provides. Dr. Axel Rauschmayer You Might Not Need Underscore A look at performing typical Underscore supplied operations using native ES5, ES5.1, ES6/ES2015 and ES7/2016. Reindex A Week of Full Stack JavaScript Workshops Build full stack apps in JS with Scott Moss: - 2-Days on Angular, Components and ES6 - 3-Days on API Design in Node.js Join us (all or part) of the week July 20-25th! Frontend Masters   Sponsored Breakouts: The Same Game on Numerous JS Game Engines A sort of gamedev answer to TodoMVC where the same Breakout game is implemented on 12 different JavaScript game frameworks so you can compare them. Matt Greer Small Modules: Tales from a Serial Module Author “LOC is pretty much irrelevant. It doesn’t matter if the module is one line or hundreds. It’s all about containing complexity.” Sindre Sorhus JavaScript Transformation Sebastian McKenzie, creator of Babel, gave a talk at JSConf on how JavaScript transformation and ES6 can help improve developer workflow and how it can futureproof your code. JSConf The Magic of Automated Accessibility Testing Angular core team member Marcy Sutton talks about testing accessibility automatically using JavaScript in just 30 minutes, but will she get the pizza she ordered? Marcy Sutton React + Performance = ? Google’s Paul Lewis noodled with React to see how it held up performance wise and noted ‘for mobile there’s a remarkable cost to using React over not doing so, and the cost is so high as to be reasonably prohibitive.’ Paul Lewis React v0.14 Beta 1 Released With 0.14, the main ‘react’ package is splitting into two: react and react-dom. The way DOM references are exposed is also changing. Facebook A Look at ES6 Feature Performance A look at the performance implications of using ES6 (the next version of JavaScript, essentially) specific features. Kevin Decker Jobs JavaScript Engineer — London UK — Improbable.ioMaking understanding complexity an intuitive practice. Building out a suite of applications giving the world access to our core simulation technology. Develop tooling, lead framework / library selection & develop large scale, high performance apps. Improbable.io JavaScript Developer at Backbase (Amsterdam)Unique fast growing startup - like company, powerful software products, awesome international peers. Come work with us in Amsterdam! The momentum is here now. No BS, just watch it: Working at Backbase Backbase Apply to the best startups in SF & NYC in 60 secondsOne of every two companies that attempt to join Underdog.io is turned away. Apply as a candidate, and founders & hiring managers email you directly. No middlemen & no placement fees for companies. Underdog.io In brief A Ranking of The 10,000 Most Popular JavaScript Projects on GitHub news  JS.org Free Angular 2.0 Webinar on July 22 news Learn to write Angular 1 code today so it is easily converted to Angular 2 tomorrow. Rangle.io's CTO Yuri Takhteyev on how to survive the transition. Register Now.  Rangle   Sponsored 'Looks like Apple Music is an Ember.js app.' news  Tom Dale Marvell Brings JavaScript To The Smallest Devices Ever news  InsertHTML Recursion in Functional JavaScript tutorial  M. David Green Styling Angular 2 Components tutorial  Pascal Precht Running Arbitrary JS Functions on AWS Lambda tutorial  Alex Santos A Quick Look at Async Control Flow tutorial With a particular focus on new ES6 patterns and ES7’s ‘await’.   Kenny Kaye Introduction to the Fetch API tutorial Ludovico Fischer looks at the Fetch API (supported in the latest Chrome, Opera and Firefox), a tidier replacement for XMLHttpRequest in most situations.   SitePoint How to Convert Angular 1 Directives to Angular 2 video  Max Lynch Async Programming in ES7 video A look at some of the proposed asynchronous programming features for the next version of ECMAScript.   Jafar Husain Componentize Your App with Polymer Elements video  Rob Dodson Doubling Down on npm opinion A look at moving from using both npm and Bower to just npm.   Mike Pennisi Over The Edge: Web Components Are An Endangered Species opinion “I always loved the idea of Web Components [..] However, in four years, we haven’t got much to show..”   Christian Heilmann How Fast Are Web Workers? opinion  Mozilla Hacks Spectacle: A React.js Presentation Library, Write Your Decks in JSX tools  Formidable Labs Start Managing Your JavaScript Logs & Prevent Errors For Free tools Discover how you can find the root cause for specific JavaScript errors before they become problems. Start free.  Loggly   Sponsored ES-Checker: See How Much of ECMAScript 6/2015 Your Browser Supports tools  Ruan YiFeng cellauto.js: Library for Creating Cellular Automata Simulations code There’s a nice set of demos on the homepage to enjoy.   Jonas Olmstead Introducing Moron.js: A New SQL-Friendly ORM code If you like this, don't forget about Node Weekly.  Vincit Oy Curated by Peter Cooper and published by Cooper Press. Stop getting JavaScript Weekly : Change email address : Read this issue on the Web © Cooper Press Ltd. Office 30, Lincoln Way, Louth, LN11 0LS, UK

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