--- title: "This week's JavaScript news, issue 257" publication: "JavaScript Weekly" issue: 257 published_at: "2015-11-06" canonical_url: "https://javascriptweekly.com/issues/257" --- This week's JavaScript news, issue 257 This week's JavaScript news — [Read this e-mail on the Web](http://javascriptweekly.com/issues/257) JavaScript WeeklyIssue 257 — November 6, 2015[Take The ES6 JavaScript Quiz](http://perfectionkills.com/javascript-quiz-es6/) 13 multiple choice questions on things like bindings, classes, computed properties, and more, await you. [Explanations of the answers](https://gist.github.com/DmitrySoshnikov/3928607cb8fdba42e712) are available. kangax [Object.observe Being Withdrawn As A TC39 Proposal](https://esdiscuss.org/topic/an-update-on-object-observe) Object.observe was [a promising new feature](http://addyosmani.com/blog/the-future-of-data-binding-is-object-observe/) in the forthcoming ES7 standard (and [implemented](https://code.google.com/p/v8/issues/detail?id=2409) in V8) but which now appears to be withdrawn from consideration by TC39, as well as from V8. ESDiscuss [JavaScript Dates, Trains, Passover, and Henry VIII](https://curtisautery.appspot.com/5779342353235968) A tour of the history of dates and times which, eventually, moves into how JavaScript deals with their quirks. This is a long read which threads the worlds of technology and politics together well. Curtis Autery [![Rangle.io\](https://copm.s3.amazonaws.com/55179da7.jpg)](http://rangle.io/services/javascript-training/?utm_campaign=Online%20Training%20-%202&utm_medium=E-newsletter&utm_source=JSWeekly)[Online Angular 2.0 Transition Architecture Training](http://rangle.io/services/javascript-training/?utm_campaign=Online%20Training%20-%202&utm_medium=E-newsletter&utm_source=JSWeekly)Master the art of writing your applications in Angular 1.x using an approach that makes it easier to convert to Angular 2 tomorrow with this 5 day online training. Attend remotely from anywhere in the world and take advantage of recorded sessions after course completion. Rangle.ioSponsor [A 27 Minute Tour of Next Gen Front End Dev with Scala.js](https://www.youtube.com/watch?v=n1GgVWOThhY) A great introductory talk on [Scala.js](http://www.scala-js.org/) which compiles Scala code to JavaScript. It’s not commercially supported by Typesafe but _is_ production ready. YouTube [What You Should Know about Node.js v5 and More](https://nodejs.org/en/blog/community/node-v5/) More information on what [Node v5](https://nodejs.org/en/blog/release/v5.0.0/) represents versus the v4 LTS release. _[Subscribe to Node Weekly](http://nodeweekly.com/) for more like this._ Node Foundation [jQuery's Relevancy: There and Back Again](http://developer.telerik.com/featured/jquerys-relevancy-there-and-back-again/) Cody Lindley explains why he believes jQuery is still important and relevant, despite the growing noise saying that you don’t need jQuery. Telerik Developer Network [The Importance of 'import' and 'export'](http://benjamn.github.io/empirenode-2015/#/) A very thorough slidedeck that stands up well on its own. It looks at the issues with CommonJS and why ES6/ES2015’s native module system is so vital. Ben Newman Jobs - [Senior JavaScript Engineer at Twitch](https://jobs.lever.co/twitch/b70d9cec-5fef-4d40-a77b-a337ad5ba15e?utm_source=javascriptweekly&utm_medium=email)Twitch is building the future of interactive entertainment and we’re looking for someone who brings JavaScript application development experience and technical leadership, around whom we can build a focused team to execute on one of our core product areas. Twitch - [JavaScript Front End Developer, Amsterdam, the Netherlands (full time)](http://grnh.se/x73sd8?utm_source=javascriptweekly&utm_medium=email)We are hiring the best Front End developers to join our international top-talent team in Amsterdam. We want _you_ to have the freedom to make an impact on millions of users worldwide and keep us innovating. Booking.com - [Stop Applying For Jobs. Have Jobs Apply For You.](https://hired.com/?utm_source=JavaScriptWeekly&utm_medium=newsletter&utm_campaign=q4_15-petercooperpress&utm_term=job&utm_content=110615-stop)For highly sought-after candidates, sifting through available job opportunities can be overwhelming. Forget applying and let interested companies reach out to you directly through Hired. Hired.com In Brief [82% Call It ES6; 18% ES2015 or JavaScript 2015](https://twitter.com/JavaScriptDaily/status/662020174837583872) news Twitter [O'Reilly Fluent 2016 Registration Now Open (Mar 7-10, San Francisco)](http://conferences.oreilly.com/fluent/javascript-html-us) news O'Reilly Media [$30M Later, Struggling JavaScript Platform Famo.us Pivots](http://techcrunch.com/2015/11/06/nopen-source/) news TechCrunch [Is Angular 2 Ready?](http://splintercode.github.io/is-angular-2-ready/) news If you want a quick look at progress.. 68 issues must be closed before the first beta. [4-Day Workshop: Algorithms and Data Structures in JavaScript](https://frontendmasters.com/workshops/algorithms-data-structures-js/) course A practical class for students comfortable with the JavaScript language but who want to level up on their data structures and algorithms knowledge. [Join us Nov 17-20th](https://frontendmasters.com/workshops/algorithms-data-structures-js/) online or in-person. Frontend MastersSponsor [Synchronous and Asynchronous Sequential Execution of Functions](http://www.2ality.com/2015/11/sequential-execution.html) tutorial Dr. Axel Rauschmayer [Building Real-Time Chat with Ember 2 and Pusher](https://blog.pusher.com/real-time-chat-with-ember-2-and-pusher/) tutorial Jack Franklin [Create a GitHub File Explorer Using Vue.js](https://scotch.io/tutorials/create-a-github-file-explorer-using-vue-js) tutorial Alex Sears [How The Guardian Used Service Workers to Build an Offline Page](https://www.theguardian.com/info/developer-blog/2015/nov/04/building-an-offline-page-for-theguardiancom) tutorial The Guardian [Converting a Gulp project from ES5 to ES6 with Babel 6.0.0](http://anthonysierra.com/11012015) tutorial Anthony Sierra [Higher Order React Components](http://natpryce.com/articles/000814.html) tutorial Nat Pryce [Observing Changes using ES6 Proxies](http://tobireif.com/posts/observing_changes_using_ES6_proxies/) tutorial May become more relevant given the Object.observe news. Tobi Reif [JavaScript ES6 var, let, or const?](https://medium.com/javascript-scene/javascript-es6-var-let-or-const-ba58b8dcde75) opinion Eric Elliott [7 Reasons to Use Ember.js](http://blog.codeschool.io/2015/10/26/7-reasons-to-use-ember-js/) opinion Jeffrey Biles [Will Angular 2 Be A Success? You Bet](http://developer.telerik.com/featured/will-angular-2-be-a-success-you-bet/) opinion Telerik Developer Network [Discover 52 tips to improve your .NET performance](http://www.red-gate.com/products/dotnet-development/ants-performance-profiler/entrypage/52-net-performance-tips?utm_source=javascriptweekly&utm_medium=displayemail&utm_content=52_net_tips&utm_campaign=antsperformanceprofiler&utm_term=email-24160) Our new eBook features dozens of tips and tricks to boost your .NET performance. [Download your free copy.](http://www.red-gate.com/products/dotnet-development/ants-performance-profiler/entrypage/52-net-performance-tips?utm_source=javascriptweekly=displayemail=52_net_tips=antsperformanceprofiler=email-24160) Red Gate SoftwareSponsor [RiotJS 2.3.0 Released: A Step Forward for the React-like Micro-Library](http://riotjs.com/) code news [Compile OCaml to JavaScript, Run on Node](http://hyegar.com/blog/2015/11/05/write-ocaml,-run-on-nodejs/) tools node Edgar Aroutiounian [Shift.JS: A Swift to JavaScript Transpiler](https://github.com/shift-js/shift-js) tools code It’s still at an early stage but works with most of Swift’s syntax. ShiftJS [Revenant: High Level PhantomJS Headless Browsing and Testing API](https://github.com/jiahaog/Revenant) code node Jia Hao [Dragon: An Attempt at Implementing 'Backbone' with Modern Concepts](https://github.com/chrisabrams/dragon) code An interesting experiment. Chris Abrams [Cropper: A Simple jQuery Image Cropping Plugin](https://github.com/fengyuanchen/cropper) code Fengyuan Chen [Human Readable JSLinux: Hand De-Obfuscated and Annotated](https://github.com/levskaya/jslinux-deobfuscated) code Based on Fabrice Bellard’s [JSLinux x86 emulator.](http://bellard.org/jslinux/tech.html) Anselm Levskaya Curated by [Peter Cooper](http://twitter.com/peterc) and published by [Cooperpress](https://cooperpress.com/). Like this? You may also enjoy: [FrontEnd Focus](http://frontendfocus.co/) : [Node Weekly](http://nodeweekly.com/) : [React Status](http://react.statuscode.com/) [Stop getting JavaScript Weekly](*|UNSUB|*) : [Change email address](*|UPDATE_PROFILE|*) : [Read this issue on the Web](http://javascriptweekly.com/issues/257) © Cooperpress Ltd. Fairfield Enterprise Centre, Lincoln Way, Louth, LN11 0LS, UK