如何获得总计在计算器中显示？

所以我为我的工作做了一个计算器，看看我们可以节省多少潜在客户。一切运作良好，但我不能得到所有框出现的总费用。我只是不认为我知道最终所有“每月总储蓄”加起来的正确流程。如何获得总计在计算器中显示？

这里是一个的jsfiddle：https://jsfiddle.net/snn5vhg2/

这里是页：http://176.32.230.46/sarahmcdonald.com/files/index.html

这里是代码：

<html> 
<head> 
<title>First Data Calculator</title> 

<meta charset="utf-8" /> 
<meta http-equiv="Content-type" content="text/html; charset=utf-8" /> 
<meta name="viewport" content="width=device-width, initial-scale=1" /> 

<style type="text/css"> 

body{ 
background-color:#e5e5e5; 
} 

#container{ 
font-family:Tahoma, Geneva, sans-serif; 
} 

#main{ 
margin-bottom:50px; 
font-size:3em; 
text-decoration:underline; 
} 

#VISABOX{ 
display:inline-block; 
width:238px; 
background-color:#fce4d1; 
padding:15px; 
border-radius:6px; 
height:238px; 
border:#c9c9c9 solid 1px; 
} 

.boxes{ 
display:inline-block; 
margin-left:20px; 
vertical-align:top; 
width:238px; 
background-color:#fce4d1; 
padding:15px; 
height:238px; 
border-radius:6px; 
border:#c9c9c9 solid 1px; 
} 


.titles{ 
margin:0 0 0 8px; 
} 


.inputs{ 
margin:7px; 
height:25px; 
width:200px; 
} 

.words{ 
margin:7px 0 0 8px ; 
} 

.calculators{ 
margin:7px; 
height:25px; 
border-radius:5px; 
background-color:#F3F3F3; 
} 

#totals{ 
margin:30px 0 0 5px; 
font-size:1.3em; 
} 

#finishButton{ 
font-size:1.3em; 
border-radius:7px; 
background-color:#F3F3F3; 
} 



</style> 


</head> 

<body> 

<div id="container"> 
<h1 id="main">Fee Calculator</h1> 

<div id="VISABOX" > 
<h4 id="VISA" class="titles">Visa</h4> 
<input id="vVol" class="inputs" type="text" placeholder="Visa Volume..."/><br> 
<input id="vFees" class="inputs" type="text" placeholder="Visa Fees..."/><br> 

<button id="vCalc" class="calculators"> Calculate </button> 
<p id="vEMDR" class="words">EMDR=<span id="vEMDRSPAN"></span></p> 
<p id="vMonthly" class="words">Monthly Savings=<span id="vMonthlySpan"></span></p> 
<p id="vYearly" class="words">Yearly Savings=<span id="vYearlySpan"></span></p> 
<p id="vFive" class="words">Five Year Savings=<span id="vFiveSpan"></span></p> 
</div> 




<div id="MCBOX" class="boxes"> 
<h4 id="MC" class="titles">MasterCard</h4> 
<input id="mcVol" class="inputs" type="text" placeholder="MC Volume..."/><br> 
<input id="mcFees" class="inputs" type="text" placeholder="MC Fees..."/><br> 

<button id="mcCalc" class="calculators"> Calculate </button> 
<p id="mcEMDR" class="words">EMDR=<span id="mcEMDRSPAN"></span></p> 
<p id="mcMonthly" class="words">Monthly Savings=<span id="mcMonthlySpan"></span></p> 
<p id="mcYearly" class="words">Yearly Savings=<span id="mcYearlySpan"></span></p> 
<p id="mcFive" class="words">Five Year Savings=<span id="mcFiveSpan"></span></p> 
</div> 




<div id="IDPBOX" class="boxes"> 
<h4 id="IDP" class="titles">Interac</h4> 
<input id="idpTrans" type="text" class="inputs" placeholder="# of Trans..."/><br> 
<input id="idpFees" type="text" class="inputs" placeholder="IDP Fees..."/><br> 

<button id="idpCalc" class="calculators"> Calculate </button> 
<p id="idpPerTran" class="words">Per Tran=<span id="idpPerTranSpan"></span></p> 
<p id="idpMonthly" class="words">Monthly Savings=<span id="idpMonthlySpan"></span></p> 
<p id="idpYearly" class="words">Yearly Savings=<span id="idpYearlySpan"></span></p> 
<p id="idpFive" class="words">Five Year Savings=<span id="idpFiveSpan"></span></p> 
</div> 

<div id="OCBOX" class="boxes"> 
<h4 id="OC" class="titles"> Other Charges </h4> 
<input id="otherCharges" type="text" class="inputs" placeholder="Total Other Charges..." /><br> 
<input id="ourCharges" type="text" class="inputs" placeholder="Our Other Charges..." /><br> 
<button id="ocCalc" class="calculators"> Calculate </button> 

<p id="ocMonthly" class="words"> Monthly Savings=<span id="ocMonthlySpan"></span></p> 
<p id="ocYearly" class="words">Yearly Savings=<span id="ocYearlySpan"></span></p> 
<p id="ocFive" class="words">Five Year Savings=<span id="ocFiveSpan"></span></p> 
</div> 

<div id="totals"> 
<button id="finishButton"> Finish </button> 
<p id="monthlyTotal"> Monthly Total Savings=<span id="monthlyTotalSpan"></span></p> 
<p id="yearlyTotal"> Total Yearly Savings=</p> 
</div>

<script type="text/javascript"> 

    document.getElementById("vCalc").onclick=function(){ 

     var visaVol=document.getElementById("vVol").value; 
     var visaFees=document.getElementById("vFees").value; 
     var visaEMDR; 
     visaEMDR=(visaFees/visaVol*100).toFixed(2); 

     var visaMonthly=(visaFees-(visaVol*.0171)).toFixed(2); 
     var visaYearly=(visaMonthly*12).toFixed(2); 
     var visaFive=(visaYearly*5).toFixed(2); 

     document.getElementById("vMonthlySpan").innerHTML=" "+visaMonthly+"$"; 
     document.getElementById("vYearlySpan").innerHTML=" "+visaYearly+"$"; 
     document.getElementById("vFiveSpan").innerHTML=" "+visaFive+"$"; 
     document.getElementById("vEMDRSPAN").innerHTML=" "+visaEMDR+"%"; 

    } 

    document.getElementById("mcCalc").onclick=function(){ 

     var mcVol=document.getElementById("mcVol").value; 
     var mcFees=document.getElementById("mcFees").value; 
     var mcEMDR=(mcFees/mcVol*100).toFixed(2); 

     var mcMonthly=(mcFees-(mcVol*.0178)).toFixed(2); 
     var mcYearly=(mcMonthly*12).toFixed(2); 
     var mcFive=(mcYearly*5).toFixed(2); 

     document.getElementById("mcMonthlySpan").innerHTML=" "+mcMonthly+"$"; 
     document.getElementById("mcYearlySpan").innerHTML=" "+mcYearly+"$"; 
     document.getElementById("mcFiveSpan").innerHTML=" "+mcFive+"$"; 
     document.getElementById("mcEMDRSPAN").innerHTML=" "+mcEMDR+"%"; 

    } 


    document.getElementById("idpCalc").onclick=function(){ 

     var debitTrans=document.getElementById("idpTrans").value; 
     var debitFees=document.getElementById("idpFees").value; 
     var perTran=(debitFees/debitTrans).toFixed(2); 

     var debitMonthly=(debitFees-(debitTrans*.04)).toFixed(2); 
     var debitYearly=(debitMonthly*12).toFixed(2); 
     var debitFive=(debitYearly*5).toFixed(2); 

     document.getElementById("idpPerTranSpan").innerHTML=" "+perTran+"$"; 
     document.getElementById("idpMonthlySpan").innerHTML=" "+debitMonthly+"$"; 
     document.getElementById("idpYearlySpan").innerHTML=" "+debitYearly+"$"; 
     document.getElementById("idpFiveSpan").innerHTML=" "+debitFive+"$"; 
    } 


    document.getElementById("ocCalc").onclick=function(){ 
     var otherFees=document.getElementById("otherCharges").value; 
     var ourFees=document.getElementById("ourCharges").value; 

     var ocMonthlySav=(otherFees-ourFees).toFixed(2); 
     var ocYearlySav=(ocMonthlySav*12).toFixed(2); 
     var ocFiveSav=(ocYearlySav*5).toFixed(2); 

     document.getElementById("ocMonthlySpan").innerHTML=" "+ocMonthlySav+"$"; 
     document.getElementById("ocYearlySpan").innerHTML=" "+ocYearlySav+"$"; 
     document.getElementById("ocFiveSpan").innerHTML=" "+ocFiveSav+"$"; 
    } 

document.getElementById("finishButton").onclick=function(){ 
    var monTotal= 

    document.getElementById("monthlyTotalSpan").innerHTML=" "+monTotal+"$"; 
} 

</script>

来源

2016-04-15 Sarah McDonald

你想在哪里显示总数？ – uzaif

'var monTotal ='这个变量是什么？ – uzaif

我们很谨慎，不喜欢点击网址。我在这里创建了一个JSFiddle：https://jsfiddle.net/snn5vhg2/ – bitfiddler

看起来你刚刚退出，当你90％完成（希望不是）。

但完事你需要从xxMonthlySpan和xxYearlySpan标签抢值，并将其转换为浮动，加在一起，然后更改到底span标签的innerHTML。

你也没有<span id="yearlyTotalSpan"></span>所以我补充说，只是为了与你有的一切保持一致。

我也将四舍五入到小数点后两位。

这里是一个小提琴：https://jsfiddle.net/qkx8h3hy/

评论，如果您有任何问题。

来源

2016-04-15 01:58:58 theblindprophet

看起来像我错过了parsefloat，我还没有学到。所以当我做了。价值，我得到了NaN。而当我做.innerHTML时，我只是列出了所有总数，没有添加。在这种情况下，解析是否是必要的，或者有没有办法用.value来实现？ –

因此'innerHTML'作为一个字符串返回。 'parseFloat'只是把它变成一个十进制数。 – theblindprophet

这真是太棒了！因此，仅供将来参考，我是否也应该在使用输入的计算中使用parseFloat？而不是获取.value？ –

如何获得总计在计算器中显示？

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