date.setSeconds()是JavaScript中的內置函數,用於將秒設置為使用Date()構造函數創建的Date對象。
用法:
DateObj.setSeconds(seconds_Value)
DateObj是使用Date()構造函數創建的有效Date對象,我們要在其中構造第二個對象。秒的值是從0到59。
參數:這裏的參數seconds_Value是秒的值,用於在Date()構造函數中設置。
返回值:它返回由setSeconds()函數設置的具有更新秒數的新日期。
下麵的程序演示了setSeconds()函數:
<script>
// Here a date has been assigned
// while creating Date object
var dateobj = new Date('October 13, 1996 05:35:32');
// new second of 52 is being set in above Date
// Object with the help of setSeconds() function
dateobj.setSeconds(52);
// new second from above Date Object is
// being extracted using getSeconds()
var B = dateobj.getSeconds();
// Printing new Second
document.write(B);
</script>
輸出:
52
錯誤和異常
- 示例1:如果在Date()構造函數中沒有給出任何第二個,則setSeconds()函數仍然設置新的第二個作為其參數。
<script> // Here second has not been assigned // while creating Date object var dateobj = new Date('October 13, 1996'); // new second of 51 is being set in above Date // Object with the help of setSeconds() function dateobj.setSeconds(51); // new second from above Date Object is // being extracted using getSeconds() var B = dateobj.getSeconds(); // Printing new Second document.write(B); </script>
輸出:
51
- 示例2:如果在Date()構造函數中未提供任何參數,則仍將setSeconds()函數設置為第二,但是將月份,年份,日期等作為當前函數。
<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 setSeconds() function dateobj.setSeconds(42); // Seconds from above Date Object is // being extracted using getSeconds() var B = dateobj.getSeconds(); // month from above Date Object is // being extracted using getMonth() var C = dateobj.getMonth(); // date from above Date Object is // being extracted using getDate() var D = dateobj.getDate(); // year from above Date Object is // being extracted using getFullYear() var E = dateobj.getFullYear(); // 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>
輸出:
42 3 1 2018
這裏42是新的秒數,3是當前月份,即4月,1是當前日期,2018是當前年份。
- 示例3:如果將秒66的值作為setSeconds()函數的參數給出,則它將6設置為秒,因為第二範圍是從0到59的形式,並且(66%60 = 6)。
<script> // Here date has been assigned // while creating Date object var dateobj = new Date('October 13, 1996 05:35:32'); // new second of 66 is being set in above Date // Object with the help of setSeconds() function dateobj.setSeconds(66); // seconds from above Date Object is // being extracted using getSeconds() var B = dateobj.getSeconds(); // Minute from above Date Object is // being extracted using getMinutes() var C = dateobj.getMinutes(); // Printing new seconds document.write(B + "<br>"); // Printing minutes document.write(C); </script>
輸出:
6 36
此處6是新的秒,分鍾從35變為36,因為第二範圍是從0到59。因此,當將66作為參數傳遞給setSeconds()函數時,它將把相應Date對象中的秒設置為(66%60 = 6 ),並將相應的Date對象中的分鍾數增加(66/60 = 1)。
支持的瀏覽器:JavaScript date.setSeconds()函數支持的瀏覽器如下:
- 穀歌瀏覽器
- IE瀏覽器
- 火狐瀏覽器
- Opera
- 蘋果瀏覽器
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注:本文由純淨天空篩選整理自Kanchan_Ray大神的英文原創作品 JavaScript | date.setSeconds() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。