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JavaScript Date setUTCSeconds()用法及代码示例


下面是Date setUTCSeconds()方法的示例。

  • 例:
    <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 second of 52 is being set in above Date 
       // Object with the help of setUTCSeconds() method 
       dateobj.setUTCSeconds(52); 
      
       // New second from above Date Object is 
       // being extracted using getUTCSeconds() 
       var B = dateobj.getUTCSeconds(); 
      
       // Printing new Second 
       document.write(B); 
    </script>
  • 输出:
    52

date.setUTCSeconds()方法用于根据通用时间将秒设置为使用Date()构造函数创建的日期对象。

用法:

DateObj.setUTCSeconds(seconds_Value);

参数:此方法接受上述和以下描述的单个参数:

  • seconds_Value:此参数保存我们要在使用Date()构造函数创建的日期中设置的秒数。

返回值:它返回由setUTCSeconds()方法设置的新的即更新的秒。



注意:DateObj是使用Date()构造函数创建的有效Date对象,我们要在其中设置秒数.second的值从0到59。

上述方法的更多代码如下:

程序1:如果在Date()构造函数中创建日期对象时不给任何秒数,那么setUTCSeconds()方法仍然可以设置新的秒数,该秒数将根据创建的Date对象中的通用时间作为其参数给出。

<script> 
   // Here second has not been assigned according to 
   // universal time while creating Date object 
   var dateobj = new Date('October 13, 1996 GMT-3:00'); 
  
   // New second of 51 is being set in above Date 
   // Object with the help of setUTCSeconds() method 
   dateobj.setUTCSeconds(51); 
  
   // New second from above Date Object is 
   // being extracted using getUTCSeconds() 
   var B = dateobj.getUTCSeconds(); 
  
   // Printing new Second 
   document.write(B); 
</script>

输出:

51

程序2:如果在Date()构造函数中未提供任何参数,则setUTCSeconds()方法仍然可以设置第二个,但是月份,年份,日期等仍为当前设置。
根据通用时间,这里42是新的第二秒,3是当前月份,即4月,1是当前日期,2018是当前年份。

<script> 
   // Here nothing has been assigned 
   // while creating Date object 
   var dateobj = new Date(); 
  
   // New second of 42 is being set in above Date 
   // Object with the help of setUTCSeconds() method 
   dateobj.setUTCSeconds(42); 
  
   // Seconds from above Date Object is 
   // being extracted using getUTCSeconds() 
   var B = dateobj.getUTCSeconds(); 
  
   // Month from above Date Object is 
   // being extracted using getUTCMonth() 
   var C = dateobj.getUTCMonth(); 
  
   // Date from above Date Object is 
   // being extracted using getUTCDate() 
   var D = dateobj.getUTCDate(); 
  
   // Year from above Date Object is 
   // being extracted using getUTCFullYear() 
   var E = dateobj.getUTCFullYear(); 
  
   // Printing new seconds 
   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

程序3:如果将秒66的值作为setSeconds()方法的参数给出,则它将6设置为秒,因为第二范围是从0到59的形式,因此66-60=6,这里减去60,因为0到59是60。

<script> 
   // Here 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 second of 66 is being set in above Date 
   // Object with the help of setUTCSeconds() method 
   dateobj.setUTCSeconds(66); 
  
   // Seconds from above Date Object is 
   // being extracted using getUTCSeconds() 
   var B = dateobj.getUTCSeconds(); 
  
   // Minute from above Date Object is 
   // being extracted using getUTCMinutes() 
   var C = dateobj.getUTCMinutes(); 
  
   // Printing new seconds 
   document.write(B + "<br>"); 
  
   // Printing minutes 
   document.write(C); 
</script>

输出:

6
36

支持的浏览器:下面列出了JavaScript Date setUTCSeconds()方法支持的浏览器:

  • 谷歌浏览器
  • IE浏览器
  • 火狐浏览器
  • Opera
  • Safari




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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 setUTCSeconds() Method。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。