JS implementation countdown (days, hours, minutes, seconds), js days

JS implementation countdown (days, hours, minutes, seconds), js days

The example in this article explains the detailed process of JS countdown for your reference. The specific content is as follows:

Note:
The parseInt () function parses a string and returns an integer.
Syntax:
ParseInt (string, radix)

Example:

ParseInt ("10"); // returns 10 parseInt ("19", 10); // returns 19 (10 + 9) parseInt ("11", 2 ); // returns 3 (2 + 1) parseInt ("17", 8); // returns 15 (8 + 7) parseInt ("1f", 16 ); // return 31 (16 + 15) parseInt ("010"); // Undetermined: return 10 or 8

Implement countdown code

Html code:

<! DOCTYPE html> 
Javascript code:

<Script language = "javascript" type = "text/javascript"> function leftTimer (year, month, day, hour, minute, second) {var leftTime = (new Date (year, month-1, day, hour, minute, second)-(new Date (); // calculate the remaining milliseconds var days = parseInt (leftTime/1000/60/60/24, 10); // calculate the remaining days var hours = parseInt (leftTime/1000/60/60% 24, 10 ); // calculate the remaining hours var minutes = parseInt (leftTime/1000/60% 60, 10); // calculate the remaining minutes var seconds = parseInt (leftTime/1000% 60, 10 ); // calculate the remaining seconds days = checkTime (days); hours = checkTime (hours); minutes = checkTime (minutes); seconds = checkTime (seconds ); setInterval ("leftTimer (1000,)",); document. getElementById ("timer "). innerHTML = days + "day" + hours + "Hour" + minutes + "Minute" + seconds + "second";} function checkTime (I) {// Add 0 to the front of the 0-9 number, and Example 1 is changed to 01 if (I <10) {I = "0" + I ;}return I ;}</script>
Effect:

The above is all the content of this article. I hope it will be helpful for your learning and support for helping customers.