Contact emails
ft...@google.com

Explainer
None


Specification
https://tc39.es/proposal-intl-locale-info


Design docs

https://docs.google.com/document/d/1BSpa-LKE69LL1g5CHZ3G06XEfffauwS24atfSUQiIDY/edit?usp=sharing


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 We launch Intl Locale Info 
API w/ getters but later the proposal changed to rename these getters to 
functions. We need to deprecate the getter and relaunch the functions . The 
deprecation of getters is tracked in 
https://chromestatus.com/feature/5148228059398144



Blink component
Blink>JavaScript>Internationalization


TAG review
None


TAG review status
Not applicable


Risks




Interoperability and Compatibility

None


Gecko: Positive (https://bugzilla.mozilla.org/show_bug.cgi?id=1693576)

WebKit: Shipped/Shipping 
(https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes)
 Shipped in Safari version 17

Web developers: Positive 
(https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getCalendars)
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getCalendars
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getCollations
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getHourCycles
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getNumberingSystems
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getTextInfo
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getTimeZones
 
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/Locale/getWeekInfo

Other signals:


Ergonomics

minor change, similar to all other functions in Intl.Locale object already.



Activation

non- minor change, similar to all other functions in Intl.Locale object already.



Security

none - minor change, similar to all other functions in Intl.Locale object 
already.



WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?

None




Debuggability

minor change, similar to all other functions in Intl.Locale object already.



Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, 
ChromeOS, Android, and Android WebView)?
Yes


Is this feature fully tested by web-platform-tests?
Yes
https://github.com/tc39/test262/tree/main/test/intl402/Locale/prototype/get*



Flag name on chrome://flags
None


Finch feature name
None


Non-finch justification
None


Requires code in //chrome?
False


Tracking bug
https://issues.chromium.org/issues/42203769


Sample links

https://github.com/tc39/proposal-intl-locale-info?tab=readme-ov-file#high-level-design


Estimated milestones


Shipping on desktop 130

DevTrial on desktop 129

Shipping on Android 130

DevTrial on Android 129




Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (eg links to known github issues in the project 
for the feature specification) whose resolution may introduce web 
compat/interop risk (eg, changing to naming or structure of the API in a 
non-backward-compatible way).
None


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5122839207477248?gate=5125593355255808


Links to previous Intent discussions
Ready for Trial: 
https://groups.google.com/a/chromium.org/g/blink-dev/c/fIZhzp4AWbk/m/bocUBCXbBwAJ



This intent message was generated by Chrome Platform Status.

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