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Extensible numeric literals
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Performance concern with let/const
We've begun deeper investigations of implementation practicalities related to let/const, and two significant performance concerns have been raised. I think these both merit re-opening discussion of two aspects of the let/const design. Temporal dead zones For reference on previous discussion of temporal dead zone see [1]. I've expressed concerns with the performance overhead required for temporal d
Store and rethrow module instantiation/evaluation errors by domenic · Pull Request #916 · tc39/ecma262
This addresses #862 by ensuring that repeated calls to ModuleDeclarationInstantiation() and ModuleEvaluation(), for Source Text Module Records, rethrow any exceptions they previously threw, instead of silently succeeding. This allows host environments to do top-down instantiation/evaluation of module graphs, instead of having to do bottom-up instantiation/evaluation in order to record individual f
tc39-notes/may-25.md at master · rwaldron/tc39-notes · GitHub
Dismiss Join GitHub today GitHub is home to over 36 million developers working together to host and review code, manage projects, and build software together. Sign up May 25, 2017 Meeting Notes Allen Wirfs-Brock (AWB), Waldemar Horwat (WH), Brian Terlson (BT), Michael Ficarra (MF), Adam Klein (AK), Chip Morningstar (CM), Dave Herman (DH), Kent C. Dodds (KCD), Kevin Gibbons (KG), Tim Disney (TD), D
Standardize Date.prototype.toString further? · Issue #845 · tc39/ecma262
Across multiple JS implementations, it seems that Date.prototype.toString writes the timezone (in parens) in a long, locale-dependent form on Windows, but in a short form (2-4 letters) from the tz database on Unix-based OSes. More details in the V8 bug tracker. The spec is really light on details for Date.prototype.toString: Return an implementation-dependent String value that represents tv as a d
GitHub - tc39/proposal-import-meta: import.meta proposal for JavaScript
This repository contains a proposal for adding an import.meta metaproperty to JavaScript, for holding host-specific metadata about the current module. It is currently in stage 4 of the TC39 process. Previously this problem space was discussed with the module-loading community in whatwg/html#1013. The result was a presentation at the May 2017 TC39 meeting of these slides. The committee's feedback a
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Adding explicit number conversion to %TypedArray%.prototype.sort by natashenka · Pull Request #1000 · tc39/ecma262
Add a [[IsHTMLDDA]] internal slot to document.all · Issue #3015 · whatwg/html
https://bugs.chromium.org/p/v8/issues/detail?id=6827
Remove `export-ns-from` since it moved to https://github.com/tc39/ecm… · tc39/proposals@77d957b
import.meta should be allowed in direct eval · Issue #7 · tc39/proposal-import-meta
Do let statements create properties on the global object?
GitHub - tc39/proposal-intl-relative-time: `Intl.RelativeTimeFormat` specification [draft]![GitHub - tc39/proposal-intl-relative-time: `Intl.RelativeTimeFormat` specification [draft]](https://cdn-ak-scissors.b.st-hatena.com/image/square/250768a8a533567c02053cf3babcf2d13569f2ce/backend=imagemagick;height=288;version=1;width=512/https%3A%2F%2Fopengraph.githubassets.com%2Fedf457e01d8c7124f3026c69dc1301bde21886b12b8b5858dc27d51c65dd68a2%2Ftc39%2Fproposal-intl-relative-time)
Normative: Define particular precision for toFixed and friends by littledan · Pull Request #857 · tc39/ecma262
tc39-notes/may-23.md at master · rwaldron/tc39-notes · GitHub
Normative: Specify Date string conversion functions by littledan · Pull Request #848 · tc39/ecma262
The Definitive TypeScript Guide - Blog | SitePen
Normative: Prohibit ASI between 'let' and 'yield'/'await' by littledan · Pull Request #885 · tc39/ecma262
What's a statement completion value in JavaScript?
GitHub - hzoo/role-of-babel-in-js: Role of Babel in JS (TC39 May 2017)
