getDay()
方法根据本地时间,返回一个具体日期中一周的第几天,0 表示星期天。
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dateObj.getDay()
无
getDay()
返回一个整数值: 0 代表星期日, 1 代表星期一,2 代表星期二, 依次类推。
getDay
方法下面第二条语句,基于日期对象 Xmas95
的值,把 1 赋值给 weekday
。也就是说1995年12月25日是星期一。
var Xmas95 = new Date("December 25, 1995 23:15:00");
var weekday = Xmas95.getDay();
alert(weekday); // 1
规范版本 | 规范状态 | 注解 |
---|---|---|
ECMAScript 1st Edition. Implemented in JavaScript 1.0 | Standard | Initial definition. |
ECMAScript 5.1 (ECMA-262) Date.prototype.getDay |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) Date.prototype.getDay |
Standard |
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
getDay | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Edge Mobile Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes | nodejs Full support Yes |