Temporal.PlainDateTime.prototype.equals()

Baseline Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The equals() method of Temporal.PlainDateTime instances returns true if this date-time is equivalent in value to another date-time (in a form convertible by 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 Temporal.PlainDateTime.compare() but not by equals().

Syntax

equals(other)

Parameters

other: A string, an object, or a Temporal.PlainDateTime instance representing the other date-time to compare. It is converted to a Temporal.PlainDateTime object using the same algorithm as 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

Specification
Temporal # sec-temporal.plaindatetime.prototype.equals

Browser compatibility

	Desktop					Mobile							Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS	Bun	Deno	Node.js
`equals`	144	144	139	128	preview	144	139	95	No	No	144	No	1.4.0	2.7	26.0.0