我有一个表格,每行有两个输入,我试图计算该行的每个输入之间的差异,并将其显示在第3列中。
我环顾四周,并尝试从 Here,here,here和here以及其他,似乎没有一个适合我。
$(".calibration_input_lin").blur(function(){
var input = $(this)
var val = input.val()
var row = input.parents('tr').eq(0)
var req = input.closest('td').prev().val()
var res = $(".resolution").data("resolution")
var diff = difference = val - req
var diff = diff.toFixed(res)
$.ajax({
url: "<%= customer_asset_calibration_header_path(@customer,@asset,@calibration_header) %>",
data: { value: val }
}).done(function( response ) {
row.find(".calibration_lin_input_diff").text(diff)
window.alert(req);
});
// or you can run some JS code here to calculate difference
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="table table-hover table-sm linearity">
<thead>
<tr>
<th>Weights</th>
<th>Required</th>
<th>Actual</th>
<th>Difference</th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td></td>
<td class="calibration_input_req"><input step="any" required="required" value="0.000" class="form-control calibration_input_lin" type="number" name="result_id[2677][required]" id="result_id_2677_required" /></td>
<td><input step="any" required="required" id="linearity_actual" class="form-control calibration_input_lin" type="number" name="result_id[2677][actual]" /></td>
<td> class ="calibration_lin_input_diff"></td>
</tr>
<tr>
<td></td>
<td class="calibration_input_req"><input step="any" required="required" value="0.005" class="form-control calibration_input_lin" type="number" name="result_id[2678][required]" id="result_id_2678_required" /></td>
<td><input step="any" required="required" id="linearity_actual" class="form-control calibration_input_lin" type="number" name="result_id[2678][actual]" /></td>
<td> class ="calibration_lin_input_diff"></td>
</tr>
<tr>
<td></td>
<td class="calibration_input_req"><input step="any" required="required" value="0.050" class="form-control calibration_input_lin" type="number" name="result_id[2679][required]" id="result_id_2679_required" /></td>
<td><input step="any" required="required" id="linearity_actual" class="form-control calibration_input_lin" type="number" name="result_id[2679][actual]" /></td>
<td> class ="calibration_lin_input_diff"></td>
</tr>
</tbody>
<table>
我在其他地方使用相同的脚本,并且当req
变量在所有表行中都是静态的时,它可以很好地工作。我似乎无法在td 2中获得输入。
任何帮助将不胜感激。
答案 0 :(得分:1)
可以使用blur
来代替input
。您可以定位父级,以在每次输入更改时获得prev()
td的输入值。
当0
中不存在任何值时,必须将初始值设置为input
。您可以使用三元运算符来实现。
HTML中没有.resolution
元素,其数据用于toFixed()
。
您可以尝试以下方式:
$(".calibration_input_lin").on('input', function(){
var input = $(this)
var val = input.val()? input.val() : 0;
var row = input.parents('tr').eq(0)
var req = input.parents('td').prev('td').find('input').val();
req = req ? req : 0;
//var res = $(".resolution").data("resolution")
var diff = val - req;
var diff = diff.toFixed(2);
$(this).parents('tr').find('.calibration_lin_input_diff').text(diff);
// or you can run some JS code here to calculate difference
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="table table-hover table-sm linearity">
<thead>
<tr>
<th>Weights</th>
<th>Required</th>
<th>Actual</th>
<th>Difference</th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td></td>
<td class="calibration_input_req"><input step="any" required="required" value="0.000" class="form-control calibration_input_lin" type="number" name="result_id[2677][required]" id="result_id_2677_required" /></td>
<td><input step="any" required="required" id="linearity_actual" class="form-control calibration_input_lin" type="number" name="result_id[2677][actual]" /></td>
<td class ="calibration_lin_input_diff"></td>
<td>
</tr>
<tr>
<td></td>
<td class="calibration_input_req"><input step="any" required="required" value="0.005" class="form-control calibration_input_lin" type="number" name="result_id[2678][required]" id="result_id_2678_required" /></td>
<td><input step="any" required="required" id="linearity_actual" class="form-control calibration_input_lin" type="number" name="result_id[2678][actual]" /></td>
<td class ="calibration_lin_input_diff"></td>
<td>
</tr>
<tr>
<td></td>
<td class="calibration_input_req"><input step="any" required="required" value="0.050" class="form-control calibration_input_lin" type="number" name="result_id[2679][required]" id="result_id_2679_required" /></td>
<td><input step="any" required="required" id="linearity_actual" class="form-control calibration_input_lin" type="number" name="result_id[2679][actual]" /></td>
<td class ="calibration_lin_input_diff"></td>
<td>
</tr>
</tbody>
<table>