setHours()
方法根据本地时间为一个日期对象设置小时数,返回从1970-01-01 00:00:00 UTC 到更新后的 日期
对象实例所表示时间的毫秒数。
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dateObj.setHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])
dateObj.setHours(hoursValue)
hoursValue
minutesValue
secondsValue
secondsValue
参数,则必须同时指定 minutesValue
参数。msValue
msValue
参数,则必须同时指定 minutesValue
和 secondsValue
参数。如果不指定 minutesValue
,secondsValue
和 msValue
参数,则会使用getMinutes()
,getSeconds()
和getMilliseconds()
方法的返回值。
如果有一个参数超出了合理范围,setHours
会相应地更新日期对象中的日期信息。例如,如果为 secondsValue
指定了 100,则分钟会加 1,然后秒数使用 40。
setHours方法
var theBigDay = new Date();
theBigDay.setHours(7);
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.setHours |
Standard | |
ECMAScript 2015 (6th Edition, ECMA-262) Date.prototype.setHours |
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 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
setHours | 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 |