How to sort numbers ignoring sign

How to sort numbers ignoring sign

mkhsammkhsam Posts: 2Questions: 1Answers: 0

Hi. I have a column with numbers like this: [1, 2, 3, 11, -15, -4] and so on. It could be a positive or negative values. I would like to sort it with ignoring sign. As example I would like to get something like this after sorting my example:
[-15, 11, -4, 3, 2, 1] or [1, 2, 3, -4, 11, -15]? How to do that?

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Answers

  • kthorngrenkthorngren Posts: 14,086Questions: 25Answers: 3,322

    Use Orthogonal data. Use columns.render is shown in the Computed Values docs to return the unsigned number for the sort operation.

    Kevin

  • mkhsammkhsam Posts: 2Questions: 1Answers: 0
    edited November 25

    Thanks, not clear how to return return the unsigned number for the sort operation and how it can sort in right order my values.
    How it looks for me now:

      <script type="text/javascript">
        $(document).ready(function() {
          $('#my_function').DataTable( {
              ajax: {"url": location.origin + '/api/v1/test_url/',
                     "dataSrc": ""},
              bPaginate: false,
              columns: [
                    {data:"results",
                     render: function ( data, type, row ) {
                            if ( type === 'sort' ) {
                                    return (data >>> 0).toString(2);
                            }
                            return data;
                    }},
                    ]
                  } );
              });
      </script>
    

    What is wrong here?

    Edited by Colin - Syntax highlighting. Details on how to highlight code using markdown can be found in this guide.

  • colincolin Posts: 12,877Questions: 0Answers: 2,198
    Answer ✓

    toString() wouldn't do it, you need Math.abs() - see here :

            render: function(data, type) {
              if (type === 'sort') {
                return Math.abs(data);
              }
              
              return data;
            }
    

    Colin

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