JavaScript Date setUTCDate()方法

下面是一个例子 日期设置日期() 方法

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  • 例子:

    <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 GMT-3:00' );
    // New date 15 of the month is being set in above
    // Date Object with the help of setDate() method
    dateobj.setUTCDate(15);
    // New date of the month according to universal
    // time from above Date Object is being extracted
    // using getDate()
    var B = dateobj.getUTCDate();
    // Printing new date of the month
    document.write(B);
    </script>

    
    

  • 输出:
    15

这个 日期setUTCDate() 方法用于根据通用时间将一个月的日期设置为日期对象,该对象是使用date()构造函数创建的。

语法:

DateObj.setUTCDate(date_Value);

参数: 此方法接受一个参数,如上所述,如下所述:

  • 日期值 这个参数包含我们想要在使用date()构造函数创建的date对象中设置的date值。

返回值: 它返回由setUTCDate()方法设置的月份的新日期,即更新日期。月份的日期是1到31之间的整数值。

以上方法的更多代码如下:

项目1: 我们知道,这个月的日期在1到31之间,但如果我们尝试将日期设置为33,它会将下个月的日期设置为2,因为33-31=2,这个日期2将成为上个月下一个月的日期。

在上面的输出中,2是11月份的日期,10是11月份,因为月份名称从0开始到11,即0代表1月份,11代表12月份。

<script>
// Here a date according to universal time has
// been assigned while creating Date object
var dateobj =
new Date( 'October 13, 1996 05:35:32 GMT-3:00' );
// New date 33 of the month is being set in above
// Date Object with the help of setUTCDate() function
dateobj.setUTCDate(33);
// New date of the month from above Date Object is
// being extracted using getUTCDate()
var B = dateobj.getUTCDate();
// New month from above Date Object is
// being extracted using getUTCMonth()
var C = dateobj.getUTCMonth();
// Printing new date of the month
document.write(B + "<br />" );
// Printing new month
document.write(C);
</script>


输出:

2
10

项目2: 如果在Date()构造函数中,我们在创建Date对象时没有给出月份的任何日期,那么setUTCDate()方法将能够设置新的日期,该日期在创建的Date对象中作为参数给出。

<script>
// Here date according to universal time has
// not been assigned while creating Date object
var dateobj =
new Date( 'October, 1996 05:35:32 GMT-3:00' );
// New date 12 of the month is being set in above Date
// Object with the help of setUTCDate() method
dateobj.setUTCDate(12);
// New date of the month from above Date Object is
// being extracted using getUTCDate()
var B = dateobj.getUTCDate();
// Printing new date of the month
document.write(B);
</script>


输出:

12

方案3: 如果Date()构造函数中没有给出任何参数,still setDate()函数将能够设置日期,但月份仍然是当前月份。

<script>
// Here nothing has been assigned
// while creating Date object
var dateobj = new Date();
// new date 13 of the month is being set in above
// Date Object with the help of setUTCDate() method
dateobj.setUTCDate(13);
// Date of the month from above Date Object is
// being extracted using getUTCDate()
var B = dateobj.getUTCDate();
// Month from above Date Object is
// being extracted using getUTCMonth()
var C = dateobj.getUTCMonth();
// Printing new date of the month
document.write(B + "<br />" );
// Printing new month
document.write(C);
</script>


输出:

13
3

方案4: 如果当月的新日期设置为零(0),则新日期将设置为上个月的最后一天。

<script>
// Here a date according to universal time
// has been assigned while creating Date object
var dateobj =
new Date( 'October 13, 1996 05:35:32 GMT-3:00' );
// New date 0 of the month is being set in above
// Date Object with the help of setUTCDate() method
dateobj.setUTCDate(0);
// Date of the month from above Date Object is
// being extracted using getUTCDate()
var B = dateobj.getUTCDate();
// Month from above Date Object is
// being extracted using getUTCMonth()
var C = dateobj.getUTCMonth();
// Printing new date of the month
document.write(B + "<br>" );
// Printing new month
document.write(C);
</script>


输出:

30
8

支持的浏览器: 支持的浏览器 JavaScript Date setUTCDate()方法 以下列出了:

  • 谷歌Chrome 1及以上版本
  • 边缘12及以上
  • Firefox 1及以上版本
  • Internet Explorer 4及以上版本
  • 歌剧4及以上
  • Safari 1及以上
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