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44 lines
1.5 KiB
JavaScript
44 lines
1.5 KiB
JavaScript
/*! © SpryMedia Ltd, David Konrad - datatables.net/license */
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/**
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* Sorts columns by any number, ignoring text. This plugin is useful if you have
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* mixed content in a column, but still want to sort by numbers. Any number means
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*
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* - integers, like 42
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* - decimal numbers, like 42.42 / 42,42
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* - signed numbers, like -42.42 / +42.42
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* - scientific numbers, like 42.42e+10
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* - illegal numbers, like 042, which is considered as 42,
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* - currency numbers, like €42,00
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*
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* Plain text is ignored; columns with no recognizable numerical content
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* is pushed to the bottom of the table, both ascending and descending.
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*
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* @demo http://jsfiddle.net/vkkL5tv7/
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*
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* @name Any number
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* @summary Sort column with mixed numerical content by number
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* @author David Konrad
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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: 'any-number', targets : 0 }
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* ]
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* } );
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*
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*/
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function _anyNumberSort(a, b, high) {
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var reg = /[+-]?((\d+(\.\d*)?)|\.\d+)([eE][+-]?[0-9]+)?/;
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a = a.replace(',', '.').match(reg);
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a = a !== null ? parseFloat(a[0]) : high;
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b = b.replace(',', '.').match(reg);
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b = b !== null ? parseFloat(b[0]) : high;
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return a < b ? -1 : a > b ? 1 : 0;
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}
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DataTable.ext.type.order['any-number-asc'] = function (a, b) {
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return _anyNumberSort(a, b, Number.POSITIVE_INFINITY);
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};
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DataTable.ext.type.order['any-number-desc'] = function (a, b) {
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return _anyNumberSort(a, b, Number.NEGATIVE_INFINITY) * -1;
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};
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