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//By defining responsivePriority value you can keep specific column
//open when colsing others in datatable. :
new DataTable('#example', {
responsive: true,
columnDefs: [
{ responsivePriority: 1, targets: 0 },//first column
{ responsivePriority: 10001, targets: 4 },//fifth column
{ responsivePriority: 2, targets: -1 }//last column
]
});