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javascript - 如何比较日期并执行以下代码？

转载 作者：太空宇宙 更新时间：2023-11-04 15:48:22 25 4
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如果购买日期在 31/Mar/xxxx 之后，则不应计算 elap_yend、rem_days、depre_cur、cur_wdv。

我还必须使用一些选项来计算 GST，如果选择了 SGST 和 CGST，我应该不计算 IGST，否则如果选择了 IGST 或标记为不应计算 SGST 和 CGST。

我该如何解决？

<body>

<div class="form-group mx-auto" >

<div class="form-row " >
    <div class="form-group col-md-2">
      <label>Purchase Date</label>
            <input type="date" class="form-control" id="pur_date" name="pur_date" onchange="cal()" required/>
    </div>
    <div class="form-group col-md-2">
      <label>End Date</label>
            <input type="date" class="form-control" id="end_date" name="end_date" onchange="cal()"required/>
    </div>
  </div>
  <div class="form-row " >
    <div class="form-group col-md-2">
      <label>Product Price</label>
            <input type="text" class="form-control" id="product_price" name="product_price" placeholder="Enter Amount"  required/>
    </div>
    <div class="form-group col-md-2">
      <label>IGST</label>
            <input type="text" class="form-control" id="igst" name="igst"  required/>
    </div>
  </div>
  <div class="form-row">
    <div class="form-group col-md-2">
      <label>SGST</label>
            <input type="text" class="form-control" id="sgst" name="sgst"   required/>
    </div>
    <div class="form-group col-md-2">
      <label>CGST</label>
            <input type="text" class="form-control" id="cgst" name="cgst"  required/>
    </div>
  </div>
  <div class="form-row">
  <div class="form-group col-md-2">
      <label>Total Amount</label>
            <input type="text" class="form-control" name="total" id="total" placeholder="Enter Total" required>
    </div>
    <div class="form-group col-md-2">
      <label>Depre Amount</label>
            <input type="text" class="form-control" name="dep_amount" id="dep_amount" required>
    </div>   
  </div>  
  <div class="form-row">
  <div class="form-group col-md-2">
      <label>Life in Days</label>
              <input type="text" class="form-control" name="life_days" id="life_days" placeholder="Enter Total life" required>
    </div>
  <div class="form-group col-md-2">
      <label>Elapsed Days(31/03)</label>
              <input type="text" class="form-control" name="elap_yend" id="elap_yend" onchange="cal()" readonly/>
    </div>

  </div>

  <div class="form-row">
    <div class="form-group col-md-2">
      <label>Remaining Days</label>
              <input type="text" class="form-control" name="rem_days" id="rem_days" placeholder="Enter Product No" required>
    </div>
    <div class="form-group col-md-2">
      <label>Current Depreciation</label>
            <input type="text" class="form-control" id="depre_cur" name="depre_cur" />
    </div>
  </div>
  <div class="form-row">
    <div class="form-group col-md-2">
      <label>W.D.V(Curr)</label>
            <input type="text" class="form-control" id="cur_wdv" name="cur_wdv" />
    </div>

  </div>
  <div class="form-row " >
    <div class="form-group col-md-2">
      <label>Next Year Starting</label>
            <input class="form-control" id="nextyearstart_date" name="pur_date" >
    </div>
    <div class="form-group col-md-2">
      <label>Next Year End Date</label>
            <input class="form-control" id="nextyearend_date" name="nextyearend_date" >
    </div>
    </div>
    <div class="form-row " >
    <div class="form-group col-md-2">
      <label>Depreciation 2</label>
    <input type="text" class="form-control" id="depre_next" name="depre_next"  required/>
    </div>
    </div>

  </div>
  <div class="form-row">
    <div class="form-group col-md-2">
      <label>W.D.V(Next)</label>
  <input type="text" class="form-control"  name="next_wdv" id="next_wdv"  /> 
    </div>
    <div class="form-group col-md-2">
      <label>Accum Depreciation</label>
            <input type="text" class="form-control" id="acc_depre" name="acc_depre" placeholder="Enter Location" required/>
    </div>
  </div>
  <div class="form-row">
  <div class="form-group col-md-2">
      <label>Sale Amount</label>
            <input type="text" class="form-control" id="sale_amount" name="sale_amount" placeholder="Enter sale amount" required/>
    </div>
    <div class="form-group col-md-2">
      <label>Profit/Loss</label>
            <input type="text" class="form-control" id="pro_los" name="pro_los" placeholder="Enter Product Desc" required/>
    </div>

  </div>
  </div>
  <button type="submit" class="btn btn-primary">Submit</button>

Javascript:

  <script type="text/javascript">
        function GetDays(){
                var dropdt = new Date(document.getElementById("end_date").value);
                 var pickdt = new Date(document.getElementById("pur_date").value);
                //var pickdt = new Date();
                return parseInt((dropdt - pickdt) / (24 * 3600 * 1000));
        }

        function cal(){
        if(document.getElementById("end_date")){
            document.getElementById("elap_yend").value=GetDays();
        }  
    }

    $(product_price).ready(function(){

    var $nextyearstart_date =  $( "#nextyearstart_date" );
    var $nextyearend_date =  $( "#nextyearend_date" );

    $nextyearstart_date.datepicker();
    $nextyearend_date.datepicker({
        onClose: function() {
        var product_price;
        var igst;
        var cgst;
        var sgst;

        product_price = parseFloat($('#product_price').val());

        life_days = parseFloat($('#life_days').val());

        elap_yend = parseFloat($('#elap_yend').val());

        dep_amount = parseFloat($('#dep_amount').val());

        depre_cur = parseFloat($('#depre_cur').val());

        igst = parseFloat($('#igst').val());

        cgst = parseFloat($('#cgst').val());

        sgst = parseFloat($('#sgst').val());

        var igst = product_price * 0.09;
        $('#igst').val(igst.toFixed(2));

        var cgst = product_price * 0.09;
        $('#cgst').val(cgst.toFixed(2));

        var sgst = product_price * 0;
        $('#sgst').val(sgst.toFixed(2));

        var total = product_price + igst + cgst + sgst;
        $('#total').val(total.toFixed(2));

        var dep_amount = product_price + (.5 * (igst + cgst + sgst));
        $('#dep_amount').val(dep_amount.toFixed(2));

        var rem_days = life_days - elap_yend;
        $('#rem_days').val(rem_days.toFixed(2));

        var depre_cur = (dep_amount/life_days) * elap_yend;    //life_days - elap_yend;
        $('#depre_cur').val(depre_cur.toFixed(2));

        var cur_wdv = dep_amount - depre_cur;    //life_days - elap_yend;
        $('#cur_wdv').val(cur_wdv.toFixed(2));
            var fromDate = $nextyearstart_date.datepicker('getDate');
            var toDate = $nextyearend_date.datepicker('getDate');

            var diff = new Date(toDate - fromDate);

            var Ddays = diff/1000/60/60/24;

            var depre_next = Ddays * (dep_amount/life_days);

        $('#depre_next').val(depre_next.toFixed(2));

        var next_wdv = cur_wdv - depre_next;
        $('#next_wdv').val(next_wdv.toFixed(2));

        var acc_depre = depre_cur + depre_next;
        $('#acc_depre').val(acc_depre.toFixed(2));

        var pro_los = depre_cur + depre_next;
        $('#pro_los').val(pro_los.toFixed(2));
           // alert(depre_next);
        }
    });
});

</script>

最佳答案

JavaScript 中的日期比较可能很棘手。有时最好使用第三方日期库，例如 MomentJS 或 Luxon。

不过，您想做的事情的基础是相当基础的。创建您想要的日期作为基准，然后创建测试日期，并进行简单比较。

const cutoffDate = new Date('March 31, 2018 23:59:59');
const testDate = new Date(); // now

if (testDate >= cutoffDate) {
  // do this calculation
} else {
  // ok, do this calculation
}

时区总是让人感到困惑(这就是第三方库很好的原因)。使用 JS Date 对象时，请记住它将使用浏览器的时区，因此创建的日期对象在纽约系统的用户与上海系统的用户之间会有所不同.

关于javascript - 如何比较日期并执行以下代码？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53082070/

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