以这种方式添加逗号以分隔成千上万，现在它们给了我类似400000的结果，但是期望的结果是400,000。换句话说，我需要这些组的结果有一个comma，以便它们之间可以成千上万的距离
$(document).ready(function () {
var table = $('#example').DataTable({
"footerCallback": function (row, data, start, end, display) {
var api = this.api(), data;
// Remove the formatting to get integer data for summation
var intVal = function (i) {
return typeof i === 'string' ?
i.replace(/[\L,]/g, '') * 1 :
typeof i === 'number' ?
i : 0;
};
// Total over all pages
total = api
.column(5)
.data()
.reduce(function (a, b) {
return intVal(a) + intVal(b);
}, 0);
// Total over this page
pageTotal = api
.column(5, { page: 'current' })
.data()
.reduce(function (a, b) {
return intVal(a) + intVal(b);
}, 0);
// Update footer
$(api.column(5).footer()).html(
// '' + pageTotal + ' ( L' + total + ' total)'
'' + total.toFixed(2)
);
},
"columnDefs": [
{ "visible": false, "targets": 2 }
],
"order": [[2, 'asc']],
"displayLength": 25,
"drawCallback": function (settings) {
var api = this.api();
var rows = api.rows({ page: 'all' }).nodes();
var last = null;
// Remove the formatting to get integer data for summation
var intVal = function (i) {
return typeof i === 'string' ?
i.replace(/[\$,]/g, '') * 1 :
typeof i === 'number' ?
i : 0;
};
total = [];
api.column(2, { page: 'all' }).data().each(function (group, i) {
group_assoc = group.replace(' ', "_");
console.log(group_assoc);
if (typeof total[group_assoc] != 'undefined') {
total[group_assoc] = total[group_assoc] + intVal(api.column(5).data()[i]);
} else {
total[group_assoc] = intVal(api.column(5).data()[i]);
}
if (last !== group) {
$(rows).eq(i).before(
'<tr class="group"><td colspan="4">' + group + '</td><td class="' + group_assoc + '"></td></tr>'
);
last = group;
}
});
for (var key in total) {
$("." + key).html("$" + total[key].toFixed(2));
}
}
});
});
<link href="https://cdn.datatables.net/1.10.19/css/jquery.dataTables.min.css" rel="stylesheet" />
<link href="https://cdn.datatables.net/rowgroup/1.0.4/css/rowGroup.dataTables.min.css" rel="stylesheet" />
<script src="//code.jquery.com/jquery-1.12.3.min.js"></script>
<script src="https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/rowgroup/1.0.4/js/dataTables.rowGroup.min.js"></script>
<div class="container">
<div class="row">
<div class="col-xs-12">
<table id="example" class="table table-bordered table-hover dt-responsive display" cellspacing="0" width="100%">
<thead>
<tr>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tfoot>
<tr>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start date</th>
<th>Total:</th>
</tr>
</tfoot>
<tbody>
<tr>
<td>Garrett Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>63</td>
<td>2011/07/25</td>
<td>$170,750</td>
</tr>
<tr>
<td>Airi Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>33</td>
<td>2008/11/28</td>
<td>$162,700</td>
</tr>
<tr>
<td>Brielle Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>61</td>
<td>2012/12/02</td>
<td>$372,000</td>
</tr>
<tr>
<td>Herrod Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>59</td>
<td>2012/08/06</td>
<td>$137,500</td>
</tr>
<tr>
<td>Sonya Frost</td>
<td>Software Engineer</td>
<td>Edinburgh</td>
<td>23</td>
<td>2008/12/13</td>
<td>$100,000</td>
</tr>
<tr>
<td>Quinn Flynn</td>
<td>Support Lead</td>
<td>Edinburgh</td>
<td>22</td>
<td>2013/03/03</td>
<td>$300,000</td>
</tr>
<tr>
<td>Doris Wilder</td>
<td>Sales Assistant</td>
<td>Sidney</td>
<td>23</td>
<td>2010/09/20</td>
<td>$85,600</td>
</tr>
<tr>
<td>Jennifer Chang</td>
<td>Regional Director</td>
<td>Singapore</td>
<td>28</td>
<td>2010/11/14</td>
<td>$357,650</td>
</tr>
<tr>
<td>Michelle House</td>
<td>Integration Specialist</td>
<td>Sidney</td>
<td>37</td>
<td>2011/06/02</td>
<td>$95,400</td>
</tr>
<tr>
<td>Timothy Mooney</td>
<td>Office Manager</td>
<td>London</td>
<td>37</td>
<td>2008/12/11</td>
<td>$136,200</td>
</tr>
<tr>
<td>Olivia Liang</td>
<td>Support Engineer</td>
<td>Singapore</td>
<td>64</td>
<td>2011/02/03</td>
<td>$234,500</td>
</tr>
<tr>
<td>Bruno Nash</td>
<td>Software Engineer</td>
<td>London</td>
<td>38</td>
<td>2011/05/03</td>
<td>$163,500</td>
</tr>
<tr>
<td>Finn Camacho</td>
<td>Support Engineer</td>
<td>San Francisco</td>
<td>47</td>
<td>2009/07/07</td>
<td>$87,500</td>
</tr>
<tr>
<td>Donna Snider</td>
<td>Customer Support</td>
<td>New York</td>
<td>27</td>
<td>2011/01/25</td>
<td>$112,000</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
这是我目前的结果 enter image description here
答案 0 :(得分：0)
您需要指定Renderer才能以自定义格式显示列值。
您可以在已知的语言环境中使用intl plugin。如果您的目标是支持美国（按照您所描述的方式使用逗号），您可以这样做：
"columnDefs": [ {
"visible": false,
"targets": 2,
"render": $.fn.dataTable.render.intlNumber('us')
}]
答案 1 :(得分：0)
您可以使用内置的number助手来解析您的电话号码。它接受五个可选参数，
后缀字符串（可选）。
render: $.fn.dataTable.render.number( ',', '.', 2, '$' )
这将格式化数字，例如$ 55,000.00。
通过代码，您可以在使用reduce()后计算总数时实现此目的。
total = api
.column(5)
.data()
.reduce(function (a, b) {
return intVal(a) + intVal(b);
}, 0)
.render(',', '.', 2, $);
这是他们的文档https://datatables.net/manual/data/renderers#Number-helper
的链接