Date.prototype.setUTCMonth()
Date
实例的 setUTCMonth()
方法根据通用时间更改该日期的月份和/或日期。
¥The setUTCMonth()
method of Date
instances changes the month and/or day of the month for this date according to universal time.
Try it
语法
参数
返回值
¥Return value
就地更改 Date
对象,并返回其新的 timestamp。如果参数为 NaN
(或获取 coerced 到 NaN
的其他值,例如 undefined
),则日期设置为 失效日期,并返回 NaN
。
¥Changes the Date
object in place, and returns its new timestamp. If a parameter is NaN
(or other values that get coerced to NaN
, such as undefined
), the date is set to Invalid Date and NaN
is returned.
描述
¥Description
如果不指定 dateValue
参数,则使用从 getUTCDate()
方法返回的值。
¥If you do not specify the dateValue
parameter, the value returned from the
getUTCDate()
method is used.
如果你指定的参数超出预期范围,setUTCMonth()
会尝试相应地更新 Date
对象中的日期信息。例如,如果对 monthValue
使用 15,则年份将增加 1,月份将使用 3。
¥If a parameter you specify is outside of the expected range, setUTCMonth()
attempts to update the date information in the Date
object accordingly.
For example, if you use 15 for monthValue
, the year will be incremented by
1, and 3 will be used for month.
示例
使用 setUTCMonth()
规范
Specification |
---|
ECMAScript Language Specification # sec-date.prototype.setutcmonth |
浏览器兼容性
BCD tables only load in the browser