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// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
// Copyright (C) 2024 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-temporal.plaindate.prototype.yearofweek
description: >
In the ISO 8601 week calendar, calendar week number 1 of a calendar year is
the week including the first Thursday of that year (based on the principle
that a week belongs to the same calendar year as the majority of its calendar
days). Because of this, some calendar days of the first calendar week of a
calendar year may be part of the preceding date calendar year, and some
calendar days of the last calendar week of a calendar year may be part of
the next calendar year.
features: [Temporal]
---*/
//
let calendar = new Temporal.Calendar("gregory");
const date = new Temporal.PlainDate(2021, 1, 1, calendar);
assert.sameValue(date.yearOfWeek, 2021);
calendar = new Temporal.Calendar("iso8601");
const isodate = new Temporal.PlainDate(2021, 1, 1, calendar);
assert.sameValue(isodate.yearOfWeek, 2020);
reportCompare(0, 0);
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