dynamically add a column to Datatables

Question

I'm have a js datatable with json content in front of me

$('#data').DataTable( {
     data: data,
     columns : [ 
         { data: "number" },
         { data: "firstname" }, 
         { data: "lastname" }
    ]
});

the datatable itself fills itself as intended. However, I'd like to add another column at the end of the table which is not quite part of the data I get. Let's say I want to add a button or a link there.

is there a quick way to add another column and use the data (eg. number)?

Desired resault for the table:

Number | Firstname | Lastname | Action
001    | John      | Doe      | link to ...page?nr=001
023    | Jane      | Doe      | link to ...page?nr=023

Answer 1

This code might do your work,

$('#data').DataTable( {
     data: data,
     columns : [ 
         { data: "number" },
         { data: "firstname" }, 
         { data: "lastname" },
         {
             "data": null,
             "render": function ( data, type, row, meta ) {
               return '<a href="'+data['number']+'">View Detail</a>'; }
         },
    ]
});

Answer 2

This is based on example found here

 function Person( firstname, lastname, age ) { this._firstname = firstname; this._lastname = lastname; this._age = age; this.firstname = function () { return this._firstname; }; this.lastname = function () { return this._lastname; }; this.age = function () { return this._age; }; this.link = function () { return '<a href="linkto...'+this._age+'">linkto...'+this._age+'</a>'; }; } $(document).ready(function() { var table = $('#example').DataTable({ columns: [ { data: null, render: 'firstname' }, { data: null, render: 'lastname' }, { data: null, render: 'age' }, { data: null, render: 'link' } ] }); table.row.add( new Person( 'Airi', 'Satou', 33 ) ); table.row.add( new Person( 'Angelica', 'Ramos', 47 ) ); table.row.add( new Person( 'Ashton', 'Cox', 66 ) ); table.draw(); } ); 

 <link href="https://cdn.datatables.net/1.10.19/css/jquery.dataTables.min.css" rel="stylesheet"/> <script src="https://code.jquery.com/jquery-3.3.1.js"></script> <script src="https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js"></script> <table id="example" class="display" style="width:100%"> </table>