time-countdown-dhms/test/test.js

timecout function,倒计时插件，支持天小时分秒

function countDown(timestamp,format) {
    function checkTime(i){
        //将0-9的数字前面加上0，例1变为01
        if (i<10) {
            i = "0"+i;
        }
        return i;
    }
    let output = null;
    let date = new Date();
    let now = date.getTime();
    //设置截止时间
    let endDate = new Date(timestamp);
    let end = endDate.getTime();
    //时间差
    let leftTime = end-now;
    //定义变量 d,h,m,s保存倒计时的时间
    if (leftTime>=0) {
        if(format==='dhms'){
            output = {
                d:'',
                h:'',
                m:'',
                s:''
            };
            output.d = Math.floor(leftTime/1000/60/60/24);
            output.h = Math.floor(leftTime/1000/60/60%60);
            output.m = Math.floor(leftTime/1000/60%60);
            output.s = Math.floor(leftTime/1000%60);

        }else if(format==='hms'){
            output = {
                h:'',
                m:'',
                s:''
            };
            // output.d = Math.floor(leftTime/1000/60/60/24);
            output.h = Math.floor(leftTime/1000/60/60);
            output.m = Math.floor(leftTime/1000/60%60);
            output.s = Math.floor(leftTime/1000%60);
        }else if(format==='ms'){
            output = {
                m:'',
                s:''
            };
            // d = Math.floor(leftTime/1000/60/60/24);
            // h = Math.floor(leftTime/1000/60/60);
            output.m = Math.floor(leftTime/1000/60);
            output.s = Math.floor(leftTime/1000%60);
        }else {
            console.log("仅支持分秒、分秒小时、分秒小时天");
        }
        for(let key in output){
            output[key] = checkTime(output[key])
        }

    }else {
        console.log("当前时间大于输入时间");
    }

    return output



}





let date = new Date('2022/06/22 18:00');
setInterval(()=>{
    let c = countDown(date,'hms');
    console.log(c.h);
    console.log(c.m);
    console.log(c.s);
},1000);