Temporal.PlainDate.prototype.equals()

The equals() method of PlainDate instances returns true if this date is equivalent in value to another date (in a form convertible by Temporal.PlainDate.from()), and false otherwise. They are compared both by their date values and their calendars, so two dates from different calendars may be considered equal by Temporal.PlainDate.compare() but not by equals().

Syntax

equals(other)

Parameters

• other
  • : A string, an object, or a PlainDate instance representing the other date to compare. It is converted to a Temporal.PlainDate object using the same algorithm as Temporal.PlainDate.from().

Return value

true if this date is equal to other both in their date value and their calendar, false otherwise.

Examples

Using equals()

const date1 = Temporal.PlainDate.from("2021-08-01");
const date2 = Temporal.PlainDate.from({ year: 2021, month: 8, day: 1 });
console.log(date1.equals(date2)); // true

const date3 = Temporal.PlainDate.from("2021-08-01[u-ca=japanese]");
console.log(date1.equals(date3)); // false

const date4 = Temporal.PlainDate.from("2021-08-02");
console.log(date1.equals(date4)); // false

Specifications

Browser compatibility

See also

• PlainDate
• Temporal.PlainDate.compare()