Date.prototype.valueOf()
Baseline
Widely available
This feature is well established and works across many devices and browser versions. Itâs been available across browsers since 2015ë 7ì.
valueOf() í¨ìë Date ê°ì²´ì ììê°ì ë°íí©ëë¤.
ìëí´ ë³´ê¸°
const date1 = new Date(Date.UTC(96, 1, 2, 3, 4, 5));
console.log(date1.valueOf());
// Expected output: 823230245000
const date2 = new Date("02 Feb 1996 03:04:05 GMT");
console.log(date2.valueOf());
// Expected output: 823230245000
Syntax
js
dateObj.valueOf();
Return value
ë°íëë milliseconds ê°ì 1 January 1970 00:00:00 UTC ì 주ì´ì§ ì¼ì ì¬ì´ì ê°ì ëë¤.
Description
valueOf() í¨ìë 01 January, 1970 UTC ì´íì milliseconds ë¨ìì ìì°ì íì
ì¸ Date ê°ì²´ì ììê°ì ë°íí©ëë¤.
ì´ í¨ìë Date.prototype.getTime() í¨ìì ëì¼í ê²°ê³¼ê°ì ë°íí©ëë¤.
ì´ í¨ìë ì¬ì©ì ì½ëì ëª ìë ê²ì´ ìë, JavaScript ìì²´ì í¬í¨ëì´ ììµëë¤.
Examples
>Using valueOf()
js
var x = new Date(56, 6, 17);
var myVar = x.valueOf(); // myVarì -424713600000를 í ë¹í©ëë¤.
ëª ì¸ì
| Specification |
|---|
| ECMAScript® 2027 Language Specification> # sec-date.prototype.valueof> |