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I'm trying to get first element from the array of values using exporterFieldCallback and export it to CSV file.

exporterFieldCallback: function ( grid, row, col, value ) {
                if ( col.name == 'dates' ) {
                  return moment(value[0]).format("YYYY-MM-DD HH:mm");
                }
                else {
                  return value;
                }
            }

but I got TypeError: Cannot read property '0' of undefined error.

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