javascript - 我刚刚将数字格式化为以逗号显示，但现在我的计算器无法工作？

Question

我正在构建一个计算器，我之前曾对此提出过问题，请参阅之前的链接:Building an interest rate calculator, however it won't produce figure

我希望某些字段在输入时显示为逗号，我在这里找到了一些代码，它似乎适用于格式，但现在计算仅返回 NaN。

知道为什么添加逗号会阻止它工作吗？

这是我用来添加逗号的代码，计算器的代码位于上一个链接:

HTML:

    <div class="col-md-10 col-md-offset-1 form-body form-group">
                <h2 class="form-heading">Find out how much your mortgage will cost</h2>
                <div class="row text-muted">
                    <div class="col-md-5 col-md-offset-1 calc-input">
                        <h3>Purchase Price</h3>
                        <div class="input-group">
                            <span class="input-group-addon">£</span>
                            <input type="text" class="form-control comma" id="pp" placeholder="150,000" onchange="depositValue()">
                        </div>
                        <h3>Deposit</h3>
                        <div class="row text-muted">
                            <div class="col-md-4">
                                <div class="input-group">
                                    <input type="text" class="form-control" id="percent" placeholder="10" onchange="depositValue()">
                                    <span class="input-group-addon">%</span>
                                </div>
                            </div>
                            <div class="col-md-8">
                                <div class="input-group">
                                    <span class="input-group-addon">£</span>
                                    <input type="text" class="form-control comma" id="dp" placeholder="15,000" onchange="depositPercent()">
                                </div>
                            </div>
                        </div>
                        <h3>Mortgage Term</h3>
                        <div class="input-group">
                            <input type="text" class="form-control" id="mt" placeholder="25">
                            <span class="input-group-addon">Years</span>
                        </div>
                        <h3>Interest Rate</h3>
                        <div class="input-group">
                            <input type="text" class="form-control" id="ir" placeholder="4">
                            <span class="input-group-addon">%</span>
                        </div>
                    </div>
                    <div class="col-md-5 text-center">
                        <h3>Estimated Monthly Payment:</h3>
                        <p id="result"></p>
                        </div>   
                </div>
                <div class="row text-muted">
                    <div class="col-md-10 col-md-offset-1 text-center">
                        <button class="btn btn-cta" onclick="calculate()">Calculate</button>
                    </div>
                </div>
            </div>

计算器 JS:

    function calculate() {
var pp = document.getElementById("pp").value;
var dp = document.getElementById("dp").value;
var mt = document.getElementById("mt").value;
var ir = document.getElementById("ir").value;
var result = document.getElementById("result");

var la = parseInt(pp.replace(/,/g, ""), 10) - parseInt(dp.replace(/,/g, ""), 10);
var intRate = (ir/100)/12;
var months = mt * 12;

var monthlyPayment = ((((la*intRate)/(1-Math.pow(1+intRate,(-1*months)))*100)/100).toFixed(2));

result.innerHTML = "£" + monthlyPayment.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
    }

    function depositValue() {
    var pp = document.getElementById("pp").value;
    var percent = document.getElementById("percent").value;
    var dp = document.getElementById("dp");

    var dpValue = (parseInt(percent.replace(/,/g, ""), 10) / 100) * parseInt(pp.replace(/,/g, ""), 10);

    dp.value = dpValue;
    }

    function depositPercent() {
    var pp = document.getElementById("pp").value;
    var dp = document.getElementById("dp").value;
    var percent = document.getElementById("percent");

    var dpPercent = (parseInt(dp.replace(/,/g, ""), 10) / parseInt(pp.replace(/,/g, ""), 10) * 100).toFixed(0);

    percent.value = dpPercent;
    }

逗号 JS(在另一个文件中):

    $('input.comma').keyup(function(event) {

    // skip for arrow keys
    if(event.which >= 37 && event.which <= 40) return;

    // format number
    $(this).val(function(index, value) {
    return value
    .replace(/\D/g, "")
    .replace(/\B(?=(\d{3})+(?!\d))/g, ",")
    ;
    });
    });

Answer 1

添加逗号后，它就不再是数字，而是字符串。当您进行计算时，您必须在处理之前将其删除，以解决这一问题。