275489 2024-06-14 08:42:44 -0700 [JSC] Fix `Intl.DurationFormat` for `numeric` and `2-digit` 2024-06-28 10:43:00 -0700 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 sosuke webkit-unassigned bfulgham simon.fraser webkit-bug-importer zalan oldest_to_newest 2041361 0 sosuke 2024-06-14 08:42:44 -0700 In the current JSC `Intl.DurationFormat` implementation, only units with a value that is not 0 or a display setting that is not `auto` are formatted. However, this behavior is incorrect according to the current spec[1]. When a unit's style is `numeric` or `2-digit` (i.e., the unit is `hours`, `minutes`, or `seconds`), it needs to be formatted even if its value is 0 and its display is set to auto. For example, consider the following code: ``` const df = new Intl.DurationFormat("en", { hours: "numeric", minutesDisplay: "auto", secondsDisplay: "auto" }); print(df.format({ hours: 0, minutes: 0, seconds: 1 })); ``` This code is expected to output `0:00:01`, but the current JSC outputs `0, 01`. Only the hours and seconds are displayed, while the minutes are not. Additionally, the separator `:` is not used; instead, `,` is outputted. [1]: https://tc39.es/proposal-intl-duration-format/#sec-partitiondurationformatpattern 2041362 1 sosuke 2024-06-14 08:43:51 -0700 Pull request: https://github.com/WebKit/WebKit/pull/29823 2042449 2 webkit-bug-importer 2024-06-21 08:46:31 -0700 <rdar://problem/130279541> 2043610 3 ews-feeder 2024-06-28 10:42:58 -0700 Committed 280460@main (471838036efe): <https://commits.webkit.org/280460@main> Reviewed commits have been landed. Closing PR #29823 and removing active labels.