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Test First Day Overrides algorithm in Intl.Locale.p.getWeekInfo - #5128

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Test First Day Overrides algorithm in Intl.Locale.p.getWeekInfo#5128
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@ptomato ptomato commented Sep 2, 2026

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This test corresponds to the ECMA-402 normative change: tc39/ecma402#1097

The thing that changes concretely, is that the inclusion of -u-ca-iso8601 in the locale identifier influences the first-day-of- week determination. ISO 8601 defines Monday as the first day of the week.

This test corresponds to the ECMA-402 normative change:
tc39/ecma402#1097

The thing that changes concretely, is that the inclusion of
`-u-ca-iso8601` in the locale identifier influences the first-day-of-
week determination. ISO 8601 defines Monday as the first day of the
week.
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ptomato requested a review from a team as a code owner September 2, 2026 23:29
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github-actions Bot commented Sep 2, 2026

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1 new or modified test were run on 7 engines.

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Test Engine262 GraalJS JavaScriptCore QuickJS SpiderMonkey V8 XS
intl402/Locale/prototype/getWeekInfo/firstDay-overrides.js

@ptomato ptomato added the awaiting consensus This needs committee consensus before it can be eligible to be merged. label Sep 2, 2026
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