JavaScript 倒计时，添加小时和分钟

Question

所以，我有以下(秒倒计时)井然有序。但!我也尝试在倒计时中添加小时和分钟。理想情况下保持相同的结构，并且只使用纯 JS。我希望输出是:

本次促销事件还剩 X 小时、X 分钟和 X 秒!

var count=30;

    var counter=setInterval(timer, 1000); //1000 will  run it every 1 second

    function timer()
    {
      count=count-1;
      if (count <= 0)
      {
         clearInterval(counter);
         return;
      }

     document.getElementById("timer").innerHTML=count + " secs"; // watch for spelling
    }

如果解决方案必须使用 jQuery 或其他库重写；没关系。只是不太可取。干杯并致敬任何帮助。

Answer 1

类似这样的事情:

var count = 30;
var counter = setInterval(timer, 1000); //1000 will  run it every 1 second

function timer() {
    count = count - 1;
    if (count == -1) {
        clearInterval(counter);
        return;
    }

    var seconds = count % 60;
    var minutes = Math.floor(count / 60);
    var hours = Math.floor(minutes / 60);
    minutes %= 60;
    hours %= 60;

    document.getElementById("timer").innerHTML = hours + "hours " + minutes + "minutes and" + seconds + " seconds left on this Sale!"; // watch for spelling
}