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41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
/**
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* An alternative to the formatted number sorting function above (particularly
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* useful when considering localisation which uses dots / periods for 10^3
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* separation rather than decimal places). Another method of overcoming it
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* difficulties of sorting formatted numbers is to have the data to be sorted
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* upon separate from the visual data. This sorting function pair will use the
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* 'title' attribute of en empty span element (or anything else) to sort
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* numerically (for example `<span title="1000000"><span>1'000'000`).
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*
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* Note that the HTML5 `data-sort` attribute can be [used to supply sorting data
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* to DataTables](//datatables.net/manual/orthogonal-data) and is preferable to
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* using this method, which is therefore marked as deprecated.
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*
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* @name Hidden title numeric sorting
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* @summary Sort data numerically based on an attribute on an empty element.
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* @deprecated
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* @author [Allan Jardine](http://sprymedia.co.uk)
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*
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* @example
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* $('#example').dataTable( {
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* columnDefs: [
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* { type: 'title-numeric', targets: 0 }
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* ]
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* } );
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*/
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jQuery.extend( jQuery.fn.dataTableExt.oSort, {
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"title-numeric-pre": function ( a ) {
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var x = a.match(/title="*(-?[0-9\.]+)/)[1];
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return parseFloat( x );
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},
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"title-numeric-asc": function ( a, b ) {
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return ((a < b) ? -1 : ((a > b) ? 1 : 0));
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},
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"title-numeric-desc": function ( a, b ) {
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return ((a < b) ? 1 : ((a > b) ? -1 : 0));
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}
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} );
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