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feat(common): Add anIntl implementation for the i18n sub-system. #55283

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@JeanMeche JeanMeche commented Apr 10, 2024 •
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Angular's i18n subsystem is responsible for providing localised formatting of numbers, percents, percentages and dates.
This feature replaces the default implementation of the i18N subsystem.

The commits add a new implementation that relies on the platform-provided Intl API.

With this new implementation relying on a platform API, it is not necessary anymore the load locale files (See #20487) .

The new implementation is available via an opt-in : useIntlImplementation().

This feature fixes the following issues:

Closes #54470

@angular-robot angular-robot bot added the detected: feature PR contains a feature commit label Apr 10, 2024
@JeanMeche JeanMeche force-pushed the poc-intl-date branch 2 times, most recently from 6c939c3 to 0ceb875 Compare April 10, 2024 15:02
@angular-robot angular-robot bot added the detected: deprecation PR contains a commit with a deprecation label Apr 10, 2024
@JeanMeche JeanMeche changed the title feat(common): Add support for i18N using the Intl API feat(common): Add and enable the Intl implementation for the i18n sub-system. Apr 10, 2024
alan-agius4
alan-agius4 reviewed Apr 10, 2024
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@JeanMeche JeanMeche changed the title feat(common): Add and enable the Intl implementation for the i18n sub-system. feat(common): Add and enable the Intl implementation for the i18n sub-system. Apr 10, 2024
@JeanMeche JeanMeche added feature Issue that requests a new feature breaking changes area: i18n Issues related to localization and internationalization and removed detected: feature PR contains a feature commit labels Apr 11, 2024
@ngbot ngbot bot added this to the Backlog milestone Apr 11, 2024
@JeanMeche JeanMeche added the action: review The PR is still awaiting reviews from at least one requested reviewer label Apr 11, 2024
@angular-robot angular-robot bot added the detected: feature PR contains a feature commit label Apr 11, 2024
@alxhub alxhub self-assigned this Apr 11, 2024
@angular-robot angular-robot bot added the detected: breaking change PR contains a commit with a breaking change label Apr 12, 2024
@JeanMeche JeanMeche force-pushed the poc-intl-date branch 2 times, most recently from 767753e to 1ca64d6 Compare April 12, 2024 10:27
@JeanMeche JeanMeche marked this pull request as ready for review April 12, 2024 10:42
@pullapprove pullapprove bot requested review from AndrewKushnir and atscott April 12, 2024 10:42
@JeanMeche JeanMeche mentioned this pull request Apr 16, 2024
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@angular-robot angular-robot bot removed the detected: breaking change PR contains a commit with a breaking change label Apr 18, 2024
@angular-robot angular-robot bot added the area: common Issues related to APIs in the @angular/common package label Jul 30, 2024
@JeanMeche JeanMeche mentioned this pull request Jul 30, 2024
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@JeanMeche JeanMeche force-pushed the poc-intl-date branch 2 times, most recently from 2e46efe to 8b33b29 Compare September 7, 2024 21:47
@JeanMeche JeanMeche mentioned this pull request Sep 22, 2024
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@pullapprove pullapprove bot removed the request for review from atscott October 17, 2024 16:55
@alxhub alxhub removed this from the v19 Feature Freeze Candidates milestone Oct 21, 2024
@ngbot ngbot bot added this to the Backlog milestone Oct 21, 2024
@JeanMeche JeanMeche modified the milestones: Backlog, v20 candidates Feb 11, 2025
@JeanMeche JeanMeche removed this from the v20 candidates milestone Apr 24, 2025
@ngbot ngbot bot added this to the Backlog milestone Apr 24, 2025
@csvn
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csvn commented May 16, 2025

I hope I'm not being a nuisance, but what is the status for this PR? I see it was removed from v20 milestone recently, and the last thing mentioned was in #57916:

I hope that we can ship it with v19, mid November.

  • Since using Intl is opt-in, can't this land in a minor version?
  • I looked through tests and code a bit, is there any work left for this to be "done"?

I've been considering replacing @angular/common in our application with pipes/helpers based on Intl so we can format based on the users current locale instead, which is a lot messier when registerLocaleData() is required to use. I thought we'd wait perhaps for this PR to land though, to avoid building something custom if it will be supported in Angular. 😅

@PowerKiKi
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I was sure this PR was merged and released already. So I was rather confused when I tried to use intl implementation, but couldn't find anything about it in current Angular source code.

I too would appreciate using this new, lighter, way to do format things. Anything we can do to help move it forward ?

JeanMeche added 2 commits June 10, 2025 10:31
@JeanMeche
feat(common): add Intl implementation to format numbers, percents a…
64f5d52 
…nd currencies

This commit adds an `Intl` implementation to format numbers, percents and currencies.
The implementation is based on the `Intl` API and allows to drop the static imports for the locale date files.

fixes angular#33803
@JeanMeche
feat(common): use the Intl API to for plurals
a3cd938 
With this commit, plurals formatting does not depend on the CLDR locale data anymore.
@JeanMeche
feat(common): add an Intl API implementation for date formatting.
8320091 
With this commit, the Intl implementation because the default one and doesn't require the CLDR locale data imports anymore.

Opt-out is possible by invoking `useLegacyDateFormatting()` ahead of bootstrap.

BREAKING CHANGE: Some custom date format aren't supported any more (`cccccc`, `EEEEEE`, `aaaaa`, `b` to `bbbbb` and `B` to `BBBBB`)
The `DatePipe` will not support offset timezone anymore, use IANA timezones instead .
@JeanMeche JeanMeche marked this pull request as draft June 14, 2025 00:35
@mauriziocescon
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I wonder: any hope for v21 or no way?

@JeanMeche JeanMeche closed this Aug 29, 2025
@JeanMeche JeanMeche deleted the poc-intl-date branch August 29, 2025 00:44
@JeanMeche JeanMeche restored the poc-intl-date branch August 29, 2025 00:44
@JeanMeche JeanMeche reopened this Aug 29, 2025
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action: review The PR is still awaiting reviews from at least one requested reviewer area: common Issues related to APIs in the @angular/common package area: i18n Issues related to localization and internationalization detected: breaking change PR contains a commit with a breaking change detected: feature PR contains a feature commit feature Issue that requests a new feature target: minor This PR is targeted for the next minor release
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Use platform Intl APIs in Angular's i18n subsystem
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@JeanMeche @AndrewKushnir @csvn @PowerKiKi @mauriziocescon @devversion @alan-agius4 @alxhub