The JavaScript date getMilliseconds() method is used to get the integer value between 0 and 999 that represents the milliseconds on the basis of local time.
Syntax:
dateObj.getMilliseconds()
Return:
An integer value between 0 and 999.
Example:
<!DOCTYPE html>
<html>
<body>
<script>
var d = new Date("March 16, 2018 13:34:45:500");
var n = d.getMilliseconds();
document.writeln(n)
</script>
</body>
</html>