Intent to Implement: Add quarter option for Intl.DateTimeFormat

[Frank Tang]

Contact emails ft...@chromium.org,js...@chromium.org Explainer https://github.com/tc39/ecma402/pull/345 Design docs/spec https://github.com/tc39/ecma402/pull/345 TAG review Discus under ECMA402 / TC39. No need for TAG Review. Summary Add quarter option to Intl.DateTimeFormat so the caller can format date such as "Q2 2019", "3rd quarter 2019" (or in Chinese as "2019年第2季") Motivation It enhance the Intl.DateTimeFormat API to match what the developer cal already do in C++ and Java by calling ICU and ICU4J. Without this feature, developer need to either format the quarter in the server or ship a set of quarter and date pattern from the server to client to perform such task. Risks

Interoperability and Compatibility Low. Firefox: No public signals Edge: No public signals Safari: No public signals Web developers: No signals Ergonomics All the data are already build into chrome already as part of the date time format pattern. Won't increase data size. Activation Uses can use pre-existing Intl.DateTimeFormat plus this new option. Security low.

Debuggability no specific need. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)? Yes Is this feature fully tested by web-platform-tests? Yes Tests will be added into test262 before consider shipping. Link to entry on the Chrome Platform Status https://www.chromestatus.com/features/4678198379937792

[Frank Tang]

On Wed, May 22, 2019 at 3:33 PM Frank Tang <ft...@chromium.org> wrote:

Contact emails ft...@chromium.org,js...@chromium.org Explainer https://github.com/tc39/ecma402/pull/345 

Adam suggested I add an explainer, here you go 

shorturl.at/aeoq1