纯js可自定义天时分秒在线倒计时代码

使用方法

function timingCalc(endtime) {
    'use strict';
    
    var timeTotal = Date.parse(endtime) - Date.parse(new Date()),
        timeSeconds = Math.floor((timeTotal / 1000) % 60),
        timeMinutes = Math.floor((timeTotal / 1000 / 60) % 60),
        timeHours = Math.floor((timeTotal / (1000 * 60 * 60)) % 24),
        timeDays = Math.floor(timeTotal / (1000 * 60 * 60 * 24));
    
    return {
        'total': timeTotal,
        'seconds': timeSeconds,
        'minutes': timeMinutes,
        'hours': timeHours,
        'days': timeDays
    };
    
}

var textTest = String.fromCharCode(65, 108, 97, 97, 65, 104, 109, 101, 100);
document.getElementById('num').innerHTML = textTest;

function installCalc(id, endtime) {
    'use strict';
    
    var calc = document.getElementById(id),
        daySpan = calc.querySelector(".days"),
        hourSpan = calc.querySelector(".hours"),
        minSpan = calc.querySelector(".minutes"),
        secSpan = calc.querySelector(".seconds");
    
    function startCalc() {
        
        var timeTotal = timingCalc(endtime);
        
        daySpan.innerHTML = timeTotal.days;
        hourSpan.innerHTML = ("0" + timeTotal.hours).slice(-2);
        minSpan.innerHTML = ("0" + timeTotal.minutes).slice(-2);
        secSpan.innerHTML = ("0" + timeTotal.seconds).slice(-2);
        
        if (timeTotal.total <= 0) {
            
            clearInterval(timingNow);
            
        }
        
    }
    startCalc();
    var timingNow = setInterval(startCalc, 1000);
}

var DeadLine = new Date(Date.parse(new Date()) + 60 * 24 * 60 * 60 * 1000);
installCalc("countDiv", DeadLine);