This feature is not Baseline because it does not work in some of the most widely-used browsers.
The toPlainMonthDay() method of Temporal.PlainDate instances returns a new Temporal.PlainMonthDay object representing the monthCode and day of this date in the same calendar system.
Note that PlainMonthDay objects do not have a month component, because months with the same name can have different month indexes in different years due to leap months.
toPlainMonthDay()
None.
A new Temporal.PlainMonthDay object representing the monthCode and day of this date in the same calendar system.
const date = Temporal.PlainDate.from("2021-07-01");
const monthDay = date.toPlainMonthDay();
console.log(monthDay.toString()); // 07-01
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| 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 | |
toPlainMonthDay |
144 | 144 | 139 | No | No | 144 | 139 | No | No | No | 144 | No | ? | 1.40 | No |
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/PlainDate/toPlainMonthDay