setDate() 方法根据本地时间来指定一个日期对象的天数。
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语法
dateObj.setDate(dayValue)参数
dayValue- 一个整数，表示该月的第几天。
描述
如果 dayValue 超出了月份的合理范围，setDate 将会相应地更新 Date 对象。例如，如果为 dayValue 指定0，那么日期就会被设置为上个月的最后一天。
例子
例子：使用setDate方法
var theBigDay = new Date(1962, 6, 7); // 1962-07-07 theBigDay.setDate(24); // 1962-07-24 theBigDay.setDate(32); // 1962-08-01
规范
| 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.setDate |
Standard | |
| ECMAScript 2015 (6th Edition, ECMA-262) Date.prototype.setDate |
Standard |
浏览器兼容性
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.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | Yes | Yes | 1 | Yes | Yes | Yes |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | Yes | Yes | Yes | 4 | Yes | Yes | Yes |