Datatable的columnDefs中的目标

Question

The documentation tells us the way we can use 'targets' in columnDefs. But is there any way we can use it dynamically? For example, I have a global array (containing column numbers) which I update every time certain function is carried out on datatable. I want to render those columns in the global array in a particular fashion. I need to know if there is any way in which I could do this.

"columnDefs":[
  {
    "targets": hide_them,//name of the global array
    "render": //some function
  }
]

Answer 1

As per documentation Target of columnDefs in Datatable must use for below approach

0 or a positive integer column index counting from the left

$('#example').dataTable( {
  "columnDefs": [ {
      "targets": 0,
      "searchable": false
    } ]
} );

A negative integer such as column index counting from the right

$('#example').dataTable( {
      "columnDefs": [ {
          "targets": -0,
          "searchable": false
        } ]
    } );

_all - A string - class name will be matched for all column as default work

$('#example').dataTable( {
          "columnDefs": [ {
              "targets": '_all',
              "searchable": false
            } ]
        } );