Not forcing super in derived class's constructor?
TLDR: If this is used without super (which should be statically analyzable), let it refer to Object.create(new.target.prototype). Otherwise, let super creates what it refers to. I know the reason to force super in derived class's constructor is to make sure this refers to the exotic object the base class might allocate. But I bet in real world, extending base classes who only create ordinary objec
exotic objectがhost objectの呼び名が変わったものという風潮 - ぶれすとつーる
native object -> ordinary object host object -> exotic object って感じの解釈をよく聞くけど違うと思う。(誰も言ってなかったらごめんなさい) es6上での定義 4.3.6 ordinary object object that has the default behaviour for the essential internal methods that must be supported by all objects. 4.3.7 exotic object object that does not have the default behaviour for one or more of the essential internal methods that must be supported by all objects.
1.0.0 Release · Issue #1406 · karma-runner/karma
There were some notes, and plans about a 1.0 release. I want to use this issue for any discussion and plans around it and start a complete list of tasks to do before we can release. There is this google doc that was started by @vojtajina and there was #944, which I will close in favor of this issue. Below is an incomplete list of things that need doing in my opinion. Organizational Clean up issue
Making a Silky Smooth Web
You should use <insert library / framework here>, it's the bestestest!
Good bye Flux, welcome Bacon/Rx?
Facebook introduced Flux about a year ago for client-side web application building and since then it has become one of the hottest tech in the web development scene. The task of Flux is to isolate business logic from the user interface logic by using dispatcher, stores and actions. The core idea is the unidirectional data flow which means that actions are propagated through the entire system in re
Ember.js 1.12 and 1.13 Beta (Glimmer!) Released
We are please to announce the release of Ember.js 1.12 and the first beta in the 1.13 series. 1.13 beta is the first Ember.js release that includes Glimmer, the new Ember rendering engine, as well as the final batch of Ember 2.0 features. We will discuss those details more below. New Features in Ember 1.12 Ember 1.12 is a relatively light release, and includes features that move Ember closer to ES
JavaScript at 20
Brendan Eich Standardization "Things that are impossible just take longer." - Hixie What was it like to hack JS in 10 days? Me in 1993, before I created JavaScript in 10 days 1995, after I was done creating JS in 10 days Java was the big Web VM JavaScript was "little brother" Think back to 1995... what was on TV then? I had my big break that year... I'd go to a real library to read Computer Scienc
ブラウザでビジュアルテストをするreftest-runnerを作った
概要 reftest-runnerというブラウザで描画内容やレイアウトといった表示結果をテストするためのライブラリを作りました。 要素技術としてはブラウザ、WebDriver API、レンダリングキャプチャ、画像Diffという感じです。 azu/reftest-runner 時間が無い人向け 以下のスライドに簡単にreftest-runnerやreftestとはなにか、どういうユースケースがあるのかが書いてあります。 reftest-runner-overview.pdf reftestとは reftest(Referrence Test)とは、2つのHTMLの表示結果(スクリーンショット)を比較することで表示結果が意図したものかをテストする方法です。 用意するHTMLとして以下の2種類を1セットとして用意して利用します。 テスト用HTML テストしたい機能を使って実装したHTML リファ
JavaScript moves forward in Microsoft Edge with ECMAScript 6 and beyond
ECMAScript is the official name for the JavaScript language we all know and love. The next version of ECMAScript, ES6 (henceforth referred to by its new name, ES2015), is nearing the end of its standards process journey. At this stage the latest draft is final and will not be receiving any further updates. In the coming weeks, ECMA will vote to officially recognize the final draft as the official
Bringing Node.js to Windows 10 IoT Core - Windows Developer BlogWindows Developer Blog
This site uses cookies for analytics, personalized content and ads. By continuing to browse this site, you agree to this use. Learn more This blog was written by Arunesh Chandra, Chakra Senior Program Manager, and Gaurav Seth, Chakra Principal PM Manager. Microsoft is making big investments in the Internet of Things (IoT). Windows 10 IoT will power a range of intelligent, connected IoT devices. Fr
RemotePageManager - Mozilla | MDN
This is an archived page. It's not actively maintained. One of the challenges of converting Firefox features and add-ons to multiprocess Firefox involves in-content pages. These pages (like about:addons) display in a tab but for now still render in the main process. There can be many reasons for wanting to move these into the content process, particularly if the page interacts with web content in
Immutability in JavaScript — SitePoint
Stay Relevant and Grow Your Career in TechPremium ResultsPublish articles on SitePointDaily curated jobsLearning PathsDiscounts to dev toolsStart Free Trial7 Day Free Trial. Cancel Anytime. Immutability is a core principle in functional programming, and has lots to offer to object-oriented programs as well. In this article, I will show what exactly immutability is all about, how to use this concep
Rubyist Magazine - スはスペックのス 【第 1 回】 RSpec の概要と、RSpec on Rails (モデル編)
『るびま』は、Ruby に関する技術記事はもちろんのこと、Rubyist へのインタビューやエッセイ、その他をお届けするウェブ雑誌です。 Rubyist Magazine について 『Rubyist Magazine』、略して『るびま』は、Rubyist の Rubyist による、Rubyist とそうでない人のためのウェブ雑誌です。 最新号 Rubyist Magazine 0065 号 バックナンバー Rubyist Magazine 0065 号 Rubyist Magazine 0064 号 Rubyist Magazine 0063 号 Rubyist Magazine 0062 号 Kaigi on Rails 特集号 RubyKaigi Takeout 2020 特集号 Rubyist Magazine 0061 号 Rubyist Magazine 0060 号 Ruby
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GitHub - leebyron/testcheck-js: Generative testing for JavaScript
alexkuz/eslint-plugin-decorator · GitHub
In which 10 days of May did Brendan Eich write JavaScript (Mocha) in 1995?
1084019 - ES6 "name" property of functions should be configurable
babel/CHANGELOG.md at v5.3.0 · babel/babel
Hello, ES6 ~これから迎えるJSのミライ~ - @yoshiko_pg