Intent to Prototype: Intl.Locale.prototype.variants

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Oct 7, 2025, 9:24:20 PM (17 hours ago) Oct 7
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Specification
https://tc39.es/ecma402/#sec-Intl.Locale.prototype.variants

Summary
Add Intl.Locale.prototype.variants as stated in https://tc39.es/ecma402/#sec-Intl.Locale.prototype.variants and also accept "variants" in option bag in Intl.Locale consturctor as in https://tc39.es/ecma402/#sec-updatelanguageid The changes to ECMA402 is merged in https://github.com/tc39/ecma402/pull/960 and the test code in test262 are merged in in https://github.com/tc39/test262/pull/4474/

Blink component
Blink>JavaScript>Internationalization

Web Feature ID
intl-locale

Motivation
TC39 already approve for the change so it is now part of ECMA402 spec.

Initial public proposal
None

TAG review
None

TAG review status
Not applicable

Risks


Interoperability and Compatibility
None

Gecko: No signal

WebKit: No signal

Web developers: No signals

Other signals:

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
None

Is this feature fully tested by web-platform-tests?
No


Requires code in //chrome?
False

Estimated milestones

No milestones specified



Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/4709921706868736?gate=4874889454551040

This intent message was generated by Chrome Platform Status.
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