Firefox Tomorrow

javascript instance accessor property

Temporal.PlainDate.prototype.yearOfWeek

View on MDN ↗

The yearOfWeek accessor property of PlainDate instances returns an integer representing the year to be paired with the weekOfYear of this date, or undefined if the calendar does not have a well-defined week system. It is calendar-dependent.

Usually this is the year of the date, but for ISO 8601, the first and last few days of the year may be attributed to the last week of the previous year or the first week of the next year, causing the yearOfWeek to differ by 1. See weekOfYear for more details.

The set accessor of yearOfWeek is undefined. You cannot change this property directly.

Examples

See the examples in the weekOfYear page.

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also