JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.20/css/jquery.dataTables.css">
<script type="text/javascript" charset="utf8" src="https://cdn.datatables.net/1.10.20/js/jquery.dataTables.js"></script>
<table id="table1" class="display">
  <thead>
    <tr>
      <th>name</th>
      <th>position</th>
      <th>salary</th>
    </tr>
  </thead>
</table>

JavaScript

$(document).ready(function() {
  var data = [{
      "name": "Tiger Nixon",
      "position": "System Architect",
      "salary": "$3,120"
    },
    {
      "name": "Orange",
      "position": "Developer",
      "salary": "$1,700"
    },
    {
      "name": "Black Winters",
      "position": "Project Engineer",
      "salary": "$1,300"
    },
    
    {
      "name": "Black Winters",
      "position": "Project Engineer",
      "salary": "$1,300"
    },
    
    {
      "name": "Orange",
      "position": "Developer",
      "salary": "$1,700"
    }
  ];
  
  //find duplicates values
  var array = [];
  data.forEach(myFunction)
  
  function myFunction(item, index) {
 
 if( array.length == 0)
 {
 array.push({"name":item.name,"isduplicate" : 0})
 }
 else
 {
 if (array.filter(e => e.name === item.name).length == 0) 
 /* vendors contains the element we're looking for */
 {
 array.push({"name":item.name,"isduplicate" : 0})
 }
 else
 {
 debugger
 array = array.filter((e) => e.name !== item.name);
 
 array.push({"name":item.name,"isduplicate" : 1})
 }
 }
 
 }
  
  $("#table1").DataTable({
    data: data,
     "createdRow": function ( row, data, index ) {
    
     var dataValue = array.find(x => x.name === data.name);
            if ( dataValue.isduplicate == 1 ) {
               if(dataValue.name == 'Black Winters')
                $(row).css('color','red')
               else if(dataValue.name == 'Orange')
                $(row).css('color','blue')
               
            }
        },
    columns: [{
        data: 'name'
      },
      {
        data: 'position'
      },
      {
        data: 'salary'
      },
    ]
  });
});