Date function
Date object: js is a built-in method for processing date and time related operations.
Creation date object:
new Date()；
Parameters can be received in new Date
1. No parameters: create a date object with local time as reference.
2. New date (year, month, day, hour, minute, second)
Note: the parameter can be omitted. The omitted part is 0 by default, except for the date (1 by default)
To get a date object:
var date=new Date();//Create a date object
date.getFullYear()//Year of acquisition
date.getMonth()//Get month 0-11 0 for month
date.getDate()//Acquisition date
date.getDay()//Get 0-60 for Sunday
date.getHours()//Get hours
date.getMinutes()//Gain points
date.getSeconds()//Get seconds
date.getMilliseconds()//Get milliseconds
Date.getTime() //Gets the time difference between 1970-01-01 00:00:00 and the current date object. In milliseconds.To set a date object:
date.setFullYear() //Set year
date.setMonth() //Set month (month starts from 0)
date.setDate() //Set day
date.setHours() //Set hours
date.setMinutes() //Set score
date.setSeconds() //Set seconds
date.setMilliseconds() //Set milliseconds
date.setTime() //Set timestampExample: countdown encapsulation
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<div></div>
<script type="text/javascript">
var odiv = document.querySelector('div');
var target = new Date(2018, 1, 15);//Target time
function cutTime(target) {
var now = new Date();//current time
var countdown = Math.abs(target - now);//Countdown time = target time - current time
return {
//day
d: parseInt(countdown / 86400000),
//Time
h: parseInt(countdown % (24 * 3600000) / 3600000),
//branch
m: parseInt(countdown % (24 * 3600000) % 3600000 / 60000),
//second
s: parseInt(countdown % (24 * 3600000) % 3600000 % 60000 / 1000),
}
}
function time() {
odiv.innerHTML = 'Distance 2018:2:15 also' + format(cutTime(target).d) + 'day' +
format(cutTime(target).h) + ' hour ' +
format(cutTime(target).m) + ' branch ' +
format(cutTime(target).s) + ' second '
}
setInterval(time, 1000);//One second timing
//format conversion
function format(n) {
return n < 10 ? '0' + n : '' + n;
}
</script>
</body>
</html>