This example shares the specific code of the implementation of JS hour, minute and second countdown for your reference. The specific content is as follows
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>jsSimple countdown to the hour, minute and second</title>
<script type="text/javascript">
function countTime() {
//Get the current time var date = new Date();
var now = ();
//Set the deadline var endDate = new Date("2016-10-22 23:23:23");
var end = ();
//Time difference var leftTime = end-now;
//Define the time when the variables d,h,m,s save the countdown var d,h,m,s;
if (leftTime>=0) {
d = (leftTime/1000/60/60/24);
h = (leftTime/1000/60/60%24);
m = (leftTime/1000/60%60);
s = (leftTime/1000%60);
}
// Assign the countdown to the div ("_d").innerHTML = d+"sky";
("_h").innerHTML = h+"hour";
("_m").innerHTML = m+"point";
("_s").innerHTML = s+"Second";
//Recursively call countTime method every second to display dynamic time effect setTimeout(countTime,1000);
}
</script>
</head >
<body onload = "countTime()">
<div>
<span >00</span>
<span >00</span>
<span >00</span>
<span >00</span>
</div>
</body>
</html>
Code summary:
: Returns the maximum integer less than or equal to the parameter
The setTimeout() method is used to call a function or calculate an expression after the specified number of milliseconds.
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