Temporal.PlainDateTime.prototype.equals()

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

Syntax#

equals(other)

Parameters#

• other
• : A string, an object, or a {{jsxref("Temporal.PlainDateTime")}} instance representing the other date-time to compare. It is converted to a Temporal.PlainDateTime object using the same algorithm as {{jsxref("Temporal/PlainDateTime/from", "Temporal.PlainDateTime.from()")}}.

Return value#

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

Examples#

Using equals()#

const dt1 = Temporal.PlainDateTime.from("2021-08-01");
const dt2 = Temporal.PlainDateTime.from({ year: 2021, month: 8, day: 1 });
console.log(dt1.equals(dt2)); // true

const dt3 = Temporal.PlainDateTime.from("2021-08-01[u-ca=japanese]");
console.log(dt1.equals(dt3)); // false

const dt4 = Temporal.PlainDateTime.from("2021-08-01T01:00:00");
console.log(dt1.equals(dt4)); // false

Specifications#

{{Specifications}}

Browser compatibility#

{{Compat}}

See also#

• {{jsxref("Temporal.PlainDateTime")}}
• {{jsxref("Temporal/PlainDateTime/compare", "Temporal.PlainDateTime.compare()")}}