我有一个使用DataTables的表。该表由4列组成，其中包含一些文本和一些文本中的数字。如果没有数字，则在数字列内，然后在td中显示'null'。我怎样才能正确排序数字并将空值设为0或某个数字以帮助排序更好？
现在，当您对列表进行排序时，它不会排序多个数字。所以'10'出现在'3'之前。另外，你注意到1440在180之前。
您可以查看我的http://codepen.io/tetonhiker/pen/dOBeqY
$(function() {
$('#dataTable').DataTable({
"paging": false,
"info": false
});
});<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<link rel="stylesheet" href="https://code.getmdl.io/1.3.0/material.indigo-pink.min.css">
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.13/css/jquery.dataTables.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script>
<script src="https://code.getmdl.io/1.3.0/material.min.js"></script>
<script src="https://cdn.datatables.net/1.10.13/js/jquery.dataTables.js"></script>
<table id="dataTable" class="mdl-data-table mdl-js-data-table mdl-shadow--2dp dataTable">
<thead>
<tr role="row">
<th class="mdl-data-table__cell--non-numeric">Shape Name</th>
<th class="numeric-cell">Number Edges</th>
<th class="numeric-cell">Sum of Interior Angles</th>
<th class="mdl-data-table__cell--non-numeric">Deleted?</th>
</tr>
</thead>
<tbody>
<tr class="rowEditData odd" value="7924" role="row" title="">
<td class="mdl-data-table__cell--non-numeric">Hexagon</td>
<td class="numeric-cell">6</td>
<td class="numeric-cell">null</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData odd deleted" value="7930" role="row" title="">
<td class="mdl-data-table__cell--non-numeric">null</td>
<td class="numeric-cell">3</td>
<td class="numeric-cell">180</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData even" value="7931" role="row">
<td class="mdl-data-table__cell--non-numeric">null</td>
<td class="numeric-cell">4</td>
<td class="numeric-cell">360</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData odd" value="7932" role="row" title="">
<td class="mdl-data-table__cell--non-numeric">null</td>
<td class="numeric-cell">5</td>
<td class="numeric-cell">540</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData even" value="7933" role="row">
<td class="mdl-data-table__cell--non-numeric">null</td>
<td class="numeric-cell">6</td>
<td class="numeric-cell">120</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData odd" value="7934" role="row">
<td class="mdl-data-table__cell--non-numeric">null hello</td>
<td class="numeric-cell">10</td>
<td class="numeric-cell">1440</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData even" value="7925" role="row">
<td class="mdl-data-table__cell--non-numeric">Octagon sample</td>
<td class="numeric-cell">8</td>
<td class="numeric-cell">null</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData odd" value="7922" role="row">
<td class="mdl-data-table__cell--non-numeric">pentagon</td>
<td class="numeric-cell">null</td>
<td class="numeric-cell">null</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData even deleted" value="7926" role="row">
<td class="mdl-data-table__cell--non-numeric">Pentagon</td>
<td class="numeric-cell">null</td>
<td class="numeric-cell">null</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData odd" value="7920" role="row">
<td class="mdl-data-table__cell--non-numeric">square-test</td>
<td class="numeric-cell">4</td>
<td class="numeric-cell">null</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
<tr class="rowEditData even" value="7927" role="row">
<td class="mdl-data-table__cell--non-numeric">Square</td>
<td class="numeric-cell">null</td>
<td class="numeric-cell">null</td>
<td class="mdl-data-table__cell--non-numeric">No</td>
</tr>
</tbody>
</table>
答案 0 :(得分：1)
试用DataTables的这个排序插件：https://datatables.net/plug-ins/sorting/natural
(function() {
/*
* Natural Sort algorithm for Javascript - Version 0.7 - Released under MIT license
* Author: Jim Palmer (based on chunking idea from Dave Koelle)
* Contributors: Mike Grier (mgrier.com), Clint Priest, Kyle Adams, guillermo
* See: http://js-naturalsort.googlecode.com/svn/trunk/naturalSort.js
*/
function naturalSort (a, b, html) {
var re = /(^-?[0-9]+(\.?[0-9]*)[df]?e?[0-9]?%?$|^0x[0-9a-f]+$|[0-9]+)/gi,
sre = /(^[ ]*|[ ]*$)/g,
dre = /(^([\w ]+,?[\w ]+)?[\w ]+,?[\w ]+\d+:\d+(:\d+)?[\w ]?|^\d{1,4}[\/\-]\d{1,4}[\/\-]\d{1,4}|^\w+, \w+ \d+, \d{4})/,
hre = /^0x[0-9a-f]+$/i,
ore = /^0/,
htmre = /(<([^>]+)>)/ig,
// convert all to strings and trim()
x = a.toString().replace(sre, '') || '',
y = b.toString().replace(sre, '') || '';
// remove html from strings if desired
if (!html) {
x = x.replace(htmre, '');
y = y.replace(htmre, '');
}
// chunk/tokenize
var xN = x.replace(re, '\0$1\0').replace(/\0$/,'').replace(/^\0/,'').split('\0'),
yN = y.replace(re, '\0$1\0').replace(/\0$/,'').replace(/^\0/,'').split('\0'),
// numeric, hex or date detection
xD = parseInt(x.match(hre), 10) || (xN.length !== 1 && x.match(dre) && Date.parse(x)),
yD = parseInt(y.match(hre), 10) || xD && y.match(dre) && Date.parse(y) || null;
// first try and sort Hex codes or Dates
if (yD) {
if ( xD < yD ) {
return -1;
}
else if ( xD > yD ) {
return 1;
}
}
// natural sorting through split numeric strings and default strings
for(var cLoc=0, numS=Math.max(xN.length, yN.length); cLoc < numS; cLoc++) {
// find floats not starting with '0', string or 0 if not defined (Clint Priest)
var oFxNcL = !(xN[cLoc] || '').match(ore) && parseFloat(xN[cLoc], 10) || xN[cLoc] || 0;
var oFyNcL = !(yN[cLoc] || '').match(ore) && parseFloat(yN[cLoc], 10) || yN[cLoc] || 0;
// handle numeric vs string comparison - number < string - (Kyle Adams)
if (isNaN(oFxNcL) !== isNaN(oFyNcL)) {
return (isNaN(oFxNcL)) ? 1 : -1;
}
// rely on string comparison if different types - i.e. '02' < 2 != '02' < '2'
else if (typeof oFxNcL !== typeof oFyNcL) {
oFxNcL += '';
oFyNcL += '';
}
if (oFxNcL < oFyNcL) {
return -1;
}
if (oFxNcL > oFyNcL) {
return 1;
}
}
return 0;
}
jQuery.extend( jQuery.fn.dataTableExt.oSort, {
"natural-asc": function ( a, b ) {
return naturalSort(a,b,true);
},
"natural-desc": function ( a, b ) {
return naturalSort(a,b,true) * -1;
},
"natural-nohtml-asc": function( a, b ) {
return naturalSort(a,b,false);
},
"natural-nohtml-desc": function( a, b ) {
return naturalSort(a,b,false) * -1;
},
"natural-ci-asc": function( a, b ) {
a = a.toString().toLowerCase();
b = b.toString().toLowerCase();
return naturalSort(a,b,true);
},
"natural-ci-desc": function( a, b ) {
a = a.toString().toLowerCase();
b = b.toString().toLowerCase();
return naturalSort(a,b,true) * -1;
}
} );
}());
答案 1 :(得分：0)
每行都有一个类mobile.html，告诉这个奇怪的插件不要将这些列排序为数字。删除该字符串。