Date.prototype.setSeconds()
Date
实例的 setSeconds()
方法根据本地时间更改该日期的秒和/或毫秒。
¥The setSeconds()
method of Date
instances changes the seconds and/or milliseconds for this date according to local 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 msValue
参数,则使用从 getMilliseconds()
方法返回的值。
¥If you do not specify the msValue
parameter, the value returned
from the getMilliseconds()
method is
used.
如果你指定的参数超出预期范围,setSeconds()
会尝试相应地更新 Date
对象中的日期信息。例如,如果对 secondsValue
使用 100,则 Date
对象中存储的分钟将增加 1,秒将使用 40。
¥If a parameter you specify is outside of the expected range, setSeconds()
attempts to update the date information in the Date
object accordingly.
For example, if you use 100 for secondsValue
, the minutes stored
in the Date
object will be incremented by 1, and 40 will be used for
seconds.
示例
使用 setSeconds()
规范
Specification |
---|
ECMAScript Language Specification # sec-date.prototype.setseconds |
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