javascript - jQuery 中的表单字段值总和

Question

我似乎无法让它适用于我正在做的项目。基本上，我试图将“收入”字段中的值总计到“总收入”字段的底部。

我做了一个JSFiddle希望这会让它更容易理解 -

HTML 标记:

<div class="form-group">
            <label class="control-label col-md-2">April</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control" name="AprilInput" placeholder="eg. 35,328" type="text" id="AprilInput"></input>
              </div>
            </div>

            <label class="control-label col-md-1">Revenue</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control" name="Output" id="AprilOutput" placeholder="0" type="text" readonly></input>
              </div>
            </div>
      </div>

      <div class="form-group">
            <label class="control-label col-md-2">May</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control" name="MayInput" placeholder="eg. 35,328" type="text" id="MayInput"></input>
              </div>
            </div>

            <label class="control-label col-md-1">Revenue</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control1" name="Output" id="MayOutput" placeholder="0" type="text" readonly></input>
              </div>
            </div>
      </div>

      <div class="form-group">
            <label class="control-label col-md-2">June</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control" name="JuneInput" placeholder="eg. 35,328" type="text" id="JuneInput"></input>
              </div>
            </div>

            <label class="control-label col-md-1">Revenue</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control1" name="Output" id="JuneOutput" placeholder="0" type="text" readonly></input>
              </div>
            </div>
      </div>

<br/>

<span class="form-horizontal">
<div class="row">
  <div class="col-lg-12">
    <div class="widget-container fluid-height clearfix">
      <div class="heading">
        <i class="icon-reorder"></i>Annual Total
      </div>
      <div class="widget-content padded">

      <div class="form-group">
            <label class="control-label col-md-6">Total Revenue</label>
            <div class="col-md-3">
              <div class="input-group">
                <span class="input-group-addon">$</span><input class="form-control" name="TotalOutput" id="TotalOutput" placeholder="0" type="text" readonly></input>
              </div>
            </div>
      </div>

Answer 1

您可以稍微整理一下代码:

   function SetupInput(obj,output,sumfunction){
        $(obj).keyup(function(){
            var n = parseInt($(this).val());
            var n = this.value.replace(/,/g, "");

            if(n <= 155000) {
                $(output).val(numberWithCommas((n/100*70).toFixed(0)));
            }
            else if(n <= 175000) {
                $(output).val(numberWithCommas((n/100*75).toFixed(0)));
            }
            else {
                $(output).val(numberWithCommas((n/100*80).toFixed(0)));
            }
            sumfunction();
        });
    }
    SetupInput($('#AprilInput')[0],$('#AprilOutput')[0],calculateSum);
    SetupInput($('#MayInput')[0],$('#MayOutput')[0],calculateSum);
    SetupInput($('#JuneInput')[0],$('#JuneOutput')[0],calculateSum);
    function numberWithCommas(x) {
        return x.toString().replace(/\B(?=(?:\d{3})+(?!\d))/g, ",");
    }



function calculateSum() {
    var sum = 0;
    //iterate through each textboxes and add the values
    $(".form-control1").each(function() {
        //add only if the value is number
        var value=this.value.replace(',','');//remove ','

        if(!isNaN(value) && value.length!=0) {
            sum += parseFloat(value);
            console.log(this.id,sum);
        }
    });

    //.toFixed() method to roundoff the final sum
    $("#TotalOutput").val(sum.toFixed(0));
}

查看 jsfiddle:http://jsfiddle.net/2jY6P/43/