我怎样才能显示一个javascript债务计数器，以0.80 $ /秒的计算，从2016年1月1日？

Question

我的客户想要一个债务计数器显示每秒0.80美分的债务从2016年1月1日累计量上升。很显然，我不能有事情刷新页面加载和我到处找东西，会做到这一点。长话短说，我找不到我所寻找的，所以我想我可以发挥创意与下面的代码，使用反向倒计时计数器和可设置的数字等于债务正确的金额。

另外，我不是一个数学的人，所以答案可能会寻找我的脸。

以下是我现在使用（由罗伯特·哈什米安 - hashemian.com）的代码：

在我的index.html显示计数器：

<script language="JavaScript">
TargetDate = "01/01/2016 12:00 AM";
BackColor = "";
ForeColor = "white";
CountActive = true;
CountStepper = 1;
LeadingZero = true;
DisplayFormat = "$%%D%%,%%H%%,%%M%%,%%S%%";
FinishMessage = "It is finally here!";
</script>

JavaScript文件：

function calcage(secs, num1, num2) {
  s = ((Math.floor(secs/num1))%num2).toString();
  if (LeadingZero && s.length < 2)
    s = "0" + s;
  return "<b>" + s + "</b>";
}

function CountBack(secs) {
  if (secs < 0) {
    document.getElementById("cntdwn").innerHTML = FinishMessage;
    return;
  }
  DisplayStr = DisplayFormat.replace(/%%D%%/g, calcage(secs,86400,100000));
  DisplayStr = DisplayStr.replace(/%%H%%/g, calcage(secs,3600,24));
  DisplayStr = DisplayStr.replace(/%%M%%/g, calcage(secs,60,60));
  DisplayStr = DisplayStr.replace(/%%S%%/g, calcage(secs,1,60));

  document.getElementById("cntdwn").innerHTML = DisplayStr;
  if (CountActive)
    setTimeout("CountBack(" + (secs+CountStepper) + ")", SetTimeOutPeriod);
}

function putspan(backcolor, forecolor) {
 document.write("<span id='cntdwn' style='background-color:" + backcolor + 
                "; color:" + forecolor + "'></span>");
}

if (typeof(BackColor)=="undefined")
  BackColor = "white";
if (typeof(ForeColor)=="undefined")
  ForeColor= "black";
if (typeof(TargetDate)=="undefined")
  TargetDate = "12/31/2020 5:00 AM";
if (typeof(DisplayFormat)=="undefined")
  DisplayFormat = "%%D%% Days, %%H%% Hours, %%M%% Minutes, %%S%% Seconds.";
if (typeof(CountActive)=="undefined")
  CountActive = true;
if (typeof(FinishMessage)=="undefined")
  FinishMessage = "";
if (typeof(CountStepper)!="number")
  CountStepper = -1;
if (typeof(LeadingZero)=="undefined")
  LeadingZero = true;


CountStepper = Math.ceil(CountStepper);
if (CountStepper == 0)
  CountActive = false;
var SetTimeOutPeriod = (Math.abs(CountStepper)-1)*1000 + 990;
putspan(BackColor, ForeColor);
var dthen = new Date(TargetDate);
var dnow = new Date();
if(CountStepper>0)
  ddiff = new Date(dnow-dthen);
else
  ddiff = new Date(dthen-dnow);
gsecs = Math.floor(ddiff.valueOf()/1000);
CountBack(gsecs);

我没有结婚到任何上述，如果有人有一个更好的代码或想法。由于任何人愿意帮助！

Answer 1

这应该让你开始。初次拿到那么当前余额更新它的每一秒使用的setInterval。您可以从setInterval函数内完成所有的渲染。

var date1 = new Date("01/01/2016 00:00:00");
var date2 = new Date();

var diff = (date2.getTime() - date1.getTime())/1000;
var debt = diff*.80

setInterval ( function() {
  
   debt += .80;
   console.log(debt.toFixed(2));
   
  
  }, 1000);

或者是这样的

const date1 = new Date("01/01/2016 00:00:00");
setInterval ( function() {
   var date2 = new Date();
   var diff = (date2.getTime() - date1.getTime())/1000;
   var debt = diff*.80
   console.log(debt.toFixed(2));

  }, 1000);