JS Implementation countdown (Days, hours, minutes, seconds) _javascript skills

The example of this article for everyone to parse the countdown to the detailed process of JS, for everyone's reference, the specific contents are as follows

Comments:
The parseint () function parses a string and returns an integer.
Syntax:
parseint (string, radix)

Cases:

parseint ("10"); Returns ten
parseint ("19", 10);//Return (10+9)
parseint ("11", 2);//Return 3 (2+1)
parseint ("17", 8);//Return 15 (8+7)
parseint ("1f", 16);//Return to (16+15)
parseint ("010");//undecided: return 10 or 8

Implementing the 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 = par Seint (LEFTTIME/1000/60/60/24, 10); Calculate the remaining days 
 var hours = parseint (lefttime/1000/60/60% 24, 10);//Calculate remaining hours 
 var minutes = parseint (lefttime/1 000/60% 60, 10);//Calculate remaining minutes 
 var seconds = parseint (lefttime/1000% 60, 10);//Calculate the number of seconds remaining 
 = Checktime (days); 
   hours = Checktime (hours); 
 minutes = Checktime (minutes); 
 seconds = checktime (seconds); 
 SetInterval ("Lefttimer (2016,11,11,11,11,11)", 1000); 
 document.getElementById ("Timer"). InnerHTML = days+ "Day" + hours+ "hour" + minutes+ "minutes" +seconds+ "seconds"; 
} 
function Checktime (i) {//0-9 of the number preceded by 0, example 1 changes to 
 if (i<10) 
 { 
  i = "0" + i; 
 } 
 return i; 
} 
 
</script> 

Implementation effect:

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