Question

我已经用JavaScript记下了10个项目的时间，但是几个项目太长了。我该如何简短？该代码仅用于一项。

    var time01 = 16360;
    function time(){
        var hour =Math.floor(time01/3600);
        var baghi01=time01%3600;
        var min = Math.floor(baghi01/60);
        var sec = baghi01%60;
        document.getElementById('hour-01').textContent = hour;
        document.getElementById('min-01').textContent = min;
        document.getElementById('sec-01').textContent = sec;
        if(sec<10){
            document.getElementById('sec-01').textContent = (`0${sec}`);
        }
        if(min<10){
            document.getElementById('min-01').textContent = (`0${min}`);
        }
        if(hour<10){
            document.getElementById('hour-01').textContent = (`0${hour}`);
        }
        time01 --;
    }
    setInterval(time,1000);

Answer 1

您可以根据时间和目标信息进行关闭。

function time(time, target) {
    const format = v => v.toString().padStart(2, 0);
    var hourE = document.getElementById(`hour-${target}`),
        minE = document.getElementById(`min-${target}`),
        secE = document.getElementById(`sec-${target}`);

    return function () {
        var hour = Math.floor(time / 3600)
            baghi01 = time % 3600,
            min = Math.floor(baghi01 / 60),
            sec = baghi01 % 60;

        hourE.innerHTML = format(hour);
        minE.innerHTML = format(min);
        secE.innerHTML = format(sec);
        time--;
    };
}

setInterval(time(16360, '01'), 996);
setInterval(time(16360, '02'), 997);
setInterval(time(16360, '03'), 998);
setInterval(time(16360, '04'), 999);
setInterval(time(16360, '05'), 1000);

<span id="hour-01"></span>:<span id="min-01"></span>:<span id="sec-01"></span><br>
<span id="hour-02"></span>:<span id="min-02"></span>:<span id="sec-02"></span><br>
<span id="hour-03"></span>:<span id="min-03"></span>:<span id="sec-03"></span><br>
<span id="hour-04"></span>:<span id="min-04"></span>:<span id="sec-04"></span><br>
<span id="hour-05"></span>:<span id="min-05"></span>:<span id="sec-05"></span><br>

我如何用js倒数清单项目？

1 个答案: