Also, v8 intents do in fact go through the Blink API owners process. Please
don't ship until there are 3 LGTMs.

LGTM1

On Thu, Oct 3, 2019 at 12:40 PM Frank Tang <ft...@chromium.org> wrote:

> To clarify these 3 PRs are considered by both ECMA402 subcommittee and
> TC39 as "Stage 3"
>
> I forgot to include the previous "Intend to Implement" link. Here it is.
>
>
> https://groups.google.com/a/chromium.org/forum/?fromgroups#!searchin/blink-dev/numberingSystem%7Csort:date/blink-dev/HFOWIjSBKWQ/XZnslmWsAQAJ
>
> These three PRs was once only 1 PR and later got split into 3 PRs. so the
> original I2I cover all of them.
>
>
> On Wed, Oct 2, 2019 at 1:11 PM Frank Tang <ft...@chromium.org> wrote:
>
>> These three ECMA402 PRs are intertwined and need to be considered to ship
>> together instead of three different one:
>>
>> #175 Add calendar and numberingSystem options
>> #349 Allow calendar to determine choice of pattern
>> #351 Permit relatedYear and yearName in output
>>
>>
>> Spec
>>
>> https://github.com/tc39/ecma402/pull/175
>>
>> https://github.com/tc39/ecma402/pull/349
>>
>> https://github.com/tc39/ecma402/pull/351
>>
>> Summary
>>
>>
>> All three ECMA402 PRs reach consensus from both ECMA402 committee late
>> Sept and TC39 in Oct. These three PRs make the pre-existing
>> Intl.DateTimeFormat to specify different "calendar" via option (instead of
>> appending the calendar as "-u-ca-$calendar"  in locale) and make the
>> Intl.DateTimeFormat choose the pattern accordingly. It also change the
>> formatToParts method to output "relatedYear" or "yearName" type for some
>> non-gregorian calendar (such as Chinese calendar) while both the Chinese
>> calendar year name and the gregorian year name are displayed based on the
>> pattern.
>>
>> It also let Intl.DateTimeFormat and Intl.NumberFormat take
>> numberingSystem from options (instead of appending "-u-nu-$numberingSystem"
>> in locale).
>> Example
>>
>> let o = new Intl.DateTimeFormat("en" , {
>>   calendar: "chinese", year: "numeric"
>> });console.log(o.format(Date.now())); // 
>> "2019(ji-hai)"console.log(o.formatToParts(Date.now()));
>> // [{type: "relatedYear", value: "2019"},
>> //  {type: "literal", value: "("},
>> //  {type: "yearName", value: "ji-hai"},
>> //  {type: "literal", value: ")"}]
>>
>> let n = new Intl.NumberFormat("en" , {
>>   numberingSystem: "thai"
>> });console.log(n.format(1234567890)); // "๑๒๓,๔๕๖,๗๘๙"
>>
>>
>>
>> Interoperability and compatibility risk
>>
>> The options "numberingSystem" added to Intl.DateTimeFormat and
>> Intl.NumberFormat is already supported by Intl.Locale and
>> Intl.RelativeTimeFormat with the same meaning. The options "calendar" added
>> to Intl.DateTimeFormat is already supported by Intl.Locale with the same
>> meaning. The risk to break pre-existing javascript code is low.
>>
>>    -
>>
>>    Firefox: No public signals
>>    -
>>
>>    Edge: No public signals
>>    -
>>
>>    Safari:No public signals
>>    -
>>
>>    Web Developers:No signals
>>
>>
>> Is this feature fully tested?
>>
>> Yes; our implementation passes our own V8 tests for all the features.
>>
>> test/intl/number-format/check-numbering-system.js
>> test/intl/number-format/constructor-numberingSytem-order.js
>> test/intl/date-format/check-numbering-system.js
>> test/intl/date-format/check-calendar.js
>> test/intl/date-format/constructor-calendar-numberingSytem-order.js
>> test/intl/date-format/related-year.js
>> test/intl/regress-9786.js
>> test/intl/regress-9787.js
>> test/intl/regress-9788.js
>> test/intl/regress-966285.js
>>
>> Also test262 tests (more to come this week #2379
>> <https://github.com/tc39/test262/pull/2379> #2381
>> <https://github.com/tc39/test262/pull/2381> #2383
>> <https://github.com/tc39/test262/pull/2383>)
>> intl402/NumberFormat/numbering-system-options
>> intl402/DateTimeFormat/numbering-system-calendar-options
>>
>>
>> Tracking bug
>>
>> https://crbug.com/v8/9154
>>
>> https://crbug.com/v8/9155
>>
>>
>>
>> Link to entry on the Chrome Platform Status dashboard
>>
>> https://www.chromestatus.com/features/5440249461211136
>>
>>
>>
>>
>> Requesting approval to ship?
>>
>> Yes. Note that since this is a V8/JS feature, this post is just an FYI to
>> blink-dev — no signoff from Blink API owners is required.
>>
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