Intl Locale Info in ECMA402

Category: JavaScript
Type: No developer-visible change
Status: In developer trial (Behind a flag) (Chrome 99)
Intent stage: Prepare to ship

Breaking change: No
Enterprise impact: None
Chromium flag: harmony_intl_locale_info
Spec maturity: Unknown status
Web Platform Tests: Yes

WPT details: feature tag: Intl.Locale-info in test262 tests under intl402/Locale/prototype/{numberingSystems,collations,calendars,hourCycles,weekInfo,textInfo,timeZones}/*

Summary

Intl Locale Info API is a new Stage ECMAScript TC39 proposal to enhance the Intl.Locale object by exposing Locale information, such as week data (first day in a week, weekend start day, weekend end day, minimun day in the first week), and text direction hour cycle used in the locale. https://github.com/tc39/proposal-intl-locale-info

Standards & signals

Specification: https://tc39.es/proposal-intl-locale-info/
Firefox: Shipped/Shipping — Ship in 93
Safari: Shipped/Shipping — Shipped in Safari Technology Preview 132
Web developers: Positive — MDN
Tracking bug: https://bugs.chromium.org/p/v8/issues/detail?id=11638

Ecosystem

Web Platform Tests: https://wpt.fyi/results/?q=intl-locale-info-in-ecma402
Chrome Platform Showcase: https://chrome-platform-showcase.paulkinlan-ea.deno.net/features
GenDN reference: https://gendn.paulkinlan-ea.deno.net/features
chrome.dev demos search: https://www.google.com/search?q=site%3Achrome.dev+Intl%20Locale%20Info%20in%20ECMA402
MDN Web Docs: https://developer.mozilla.org/en-US/search?q=Intl%20Locale%20Info%20in%20ECMA402
Baseline status: https://webstatus.dev/?q=Intl%20Locale%20Info%20in%20ECMA402

Docs: https://docs.google.com/document/d/1OwEsvs8VQwvR-ug01xLyIwpgcvUfaP24u9owc7aBKJ4 https://docs.google.com/presentation/d/1PZ0_WiE9PNInY2bgyHGJH0DbKd0PKL9RApXxVPKJjUY

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