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JavaScriptを定義する。 TC39 Ecma InternationalのTC39は、JavaScript開発者、実装者、専門家などのグループで、JavaScriptの仕様をメンテナンスし発展させるためにコミュニティと協力しています。 我々は 所属の委員会です。 コントリビュート 既存のプロポーザルに対するフィードバック、ドキュメントの改善、テスト、実装、さらには言語機能に関するアイデアなど、JavaScriptコミュニティからのコントリビュートをTC39は歓迎します。詳細については、コントリビュータガイドをご覧ください。 TC39のミーティングにメンバーとして参加するには、Ecmaに参加してください。 仕様 我々はJavaScript(正式には、ECMAScript)の仕様をGitHub上で開発し、2ヶ月ごとにミーティングを行い、プロポーザルについて議論しています。このプロセスの
Some TC39 delegates are organizing meetings with various stakeholders in order to get more input in the process and share information with the community. Current calls include: Educators - Monthly on second Thursday 12:00:00 GMT-0400 (Eastern Daylight Time) Tools and transpilers - Monthly on the fourth Wednesday 12:00:00 GMT-0400 (Eastern Daylight Time) ... Planned future calls include: Open-to-ev
tc39er.us a podcast where we talk to the TC39 delegates about JavaScript and everything else!
Array の length の最大値が 2**32-1 のはずだが、配列リテラルの実行時の動作である ArrayAccumulation ではインデックスが ToUint32 を使って 2**32-1 以下でチェックしており、明らかに範囲外アクセスを許容しているのの修正。 コンセンサスが得られた。
Author’s note: You might have noticed that the name of the author appears in this article in the third person. Hi, I’m an engineer at Mozilla working on the Firefox DevTools server. I’m also a TC39 representative. I don’t usually write about myself in the 3rd person. In 2019, Ecma’s TC39 (the standardizing body behind JavaScript/ECMAScript) will be trying something new. The committee has grown in
The npm blog has been discontinued. Updates from the npm team are now published on the GitHub Blog and the GitHub Changelog. We’re excited to announce that npm has joined ECMA International and is participating in TC39, the working group of ECMA International that defines the standard for the JavaScript programming language. (The standard is, strictly speaking, called ECMAScript, although everyone
23-25 July 2019 (-9 days from now) [Reflector Thread](https://github.com/tc39/Reflector/issues/236) -19 days 'til the agenda locks
What the smoosh happened?! A proposal for a JavaScript language feature called Array.prototype.flatten turns out to be Web-incompatible. Shipping the feature in Firefox Nightly caused at least one popular website to break. Given that the problematic code is part of the widespread MooTools library, it’s likely that many more websites are affected. (Although MooTools is not commonly used for new web
Hi! This survey is part of an initiative in the TC39 to make "how we work" more transparent! We are trying to understand better how we engage with the developer community. The purpose of this survey is to identify how well our current materials are being used by the broader JS developer community, and what we can improve! This is the first of a series of investigations that will be carried out to
Mostly JavaScript, and Date and Time, Sometimes Dogs Search Hi All! I was very lucky to have TC39 conveniently hosted at my home-campus – Microsoft in Redmond Washington – this July. It made for a very easy commute, and an enjoyable time. Starting off on a non-code note, TC39 has elected a new chair – Rex Jaeschke. Rex will serve in this capacity for the September and November meetings as a trial
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