date.setUTCMilliseconds()是JavaScript中的内置函数,用于根据通用时间将毫秒设置为使用Date()构造函数创建的日期对象。
用法:
DateObj.setUTCMilliseconds(milliseconds_Value);
DateObj是使用Date()构造函数创建的有效Date对象,在该构造函数中,我们要根据通用时间设置毫秒。毫秒值是从0到999。
参数:这里的参数是milliseconds_Value是在Date()构造函数中设置的毫秒值。
返回值:它返回由setUTCMilliseconds()函数设置的新的即更新的毫秒。
以下示例程序旨在说明setUTCMilliseconds()函数:
<script>
// Here a date has been assigned according to
// universal time while creating Date object
var dateobj = new Date('October 13, 1996 05:35:32:77 GMT-3:00');
// new millisecond of 52 is being set in above Date
// Object with the help of setUTCMilliseconds() function
dateobj.setUTCMilliseconds(52);
// new millisecond from above Date Object is
// being extracted using getUTCMilliseconds()
var B = dateobj.getUTCMilliseconds();
// Printing new millisecond
document.write(B);
</script>
输出:
52
错误和异常
- 示例1:如果在Date()构造函数中创建日期对象时不提供毫秒数,则setUTCMilliseconds()函数仍然可以设置新的毫秒数,该毫秒数作为在创建的Date对象中的参数给出。
<script> // Here millisecond has not been assigned according to // universal time while creating Date object var dateobj = new Date('October 13, 1996 GMT-3:00'); // new millisecond of 51 is being set in above Date // Object with the help of setUTCMilliseconds() function dateobj.setUTCMilliseconds(51); // new millisecond from above Date Object is // being extracted using getUTCMilliseconds() var B = dateobj.getUTCMilliseconds(); // Printing new millisecond document.write(B); </script>
输出:
51
- 示例2:如果在Date()构造函数中未提供任何参数作为参数,则setUTCMilliseconds()函数仍将能够设置毫秒,但根据通用时间,月,年,日期等仍为当前时间。
<script> // Here nothing has been assigned according to // universal time while creating Date object var dateobj = new Date(); // new millisecond of 42 is being set in above Date // Object with the help of setUTCMilliseconds() function dateobj.setUTCMilliseconds(42); // milliseconds from above Date Object is // being extracted using getUTCMilliseconds() var B = dateobj.getUTCMilliseconds(); // month from above Date Object is // being extracted using getUTCMonth() var C = dateobj.getUTCMonth(); // date from above Date Object is // being extracted using getDate() var D = dateobj.getUTCDate(); // year from above Date Object is // being extracted using getUTCFullYear() var E = dateobj.getUTCFullYear(); // Printing new milliseconds document.write(B + "<br>"); // Printing current month document.write(C + "<br>"); // Printing current date document.write(D + "<br>"); // Printing current year document.write(E); </script>
输出:
42 3 1 2018
根据通用时间,这里42是新毫秒,3是当前月份,即4月,1是当前日期,2018是当前年份。
- 示例3:如果将毫秒值1006设置为setUTCMilliseconds()函数的参数,则会将6设置为毫秒,因为毫秒范围是从0到999,因此,此处减去1000,因为0到999为1000。
<script> // Here date has been assigned according to // universal time while creating Date object var dateobj = new Date('October 13, 1996 05:35:32:45 GMT-3:00'); // new millisecond of 1006 is being set in above Date // Object with the help of setUTCMilliseconds() function dateobj.setUTCMilliseconds(1006); // milliseconds from above Date Object is // being extracted using getUTCMilliseconds() var B = dateobj.getUTCMilliseconds(); // Second from above Date Object is // being extracted using getUTCSeconds() var C = dateobj.getUTCSeconds(); // Printing new Milliseconds document.write(B + "<br>"); // Printing second document.write(C); </script>
输出:
6 33
支持的浏览器:JavaScript date.setUTCMilliseconds()函数支持的浏览器如下:
- 谷歌浏览器
- IE浏览器
- 火狐浏览器
- Opera
- 苹果浏览器
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注:本文由纯净天空筛选整理自Kanchan_Ray大神的英文原创作品 JavaScript | date.setUTCMilliseconds() function。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。