JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<table class="table table-hover table-bordered">
    <thead class="colorBlue">
        <tr>
            <td>S.No</td>
            <td>Applied On</td>
            <td>Leave Type</td>
            <td>Leave On</td>
            <td>Duration</td>
            <td>Status</td>
            <td>Approved On</td>
            <td>Approved By</td>
            <td>Action</td>
        </tr>
    </thead>
    <tbody id="levListTable"></tbody>
</table>

JavaScript

var leaveList = [{
     "appliedOn": "12-02-2017",
     "levType": "causual",
     "leaveOn": "1238626800000",
     "duration": "5 days",
     "status": "approved",
     "approvedOn": "13-02-2017",
     "approvedBy": "HR"
 }, {
     "appliedOn": "12-02-2017",
     "levType": "privileged",
     "leaveOn": "1238626800000",
     "duration": "8 days",
     "status": "pending",
     "approvedOn": "13-02-2017",
     "approvedBy": "HR"
 }];
 $(document).ready(function() {
     leaveTable()
 });

 function leaveTable() {
     for (var i = 0; i < leaveList.length; i++) {
         var tab = '<tr id="' + i + '"><td>' + (i + 1) + '</td><td class="appliedOn">' + leaveList[i].appliedOn + '</td><td class="levType" >' + leaveList[i].levType + '</td><td class="leaveOn" >' + formatDate(leaveList[i].leaveOn) + '</td><td class="duration">' + leaveList[i].duration + '</td><td class="status">' + leaveList[i].status + '</td><td class="approvedOn">' + leaveList[i].approvedOn + '</td><td class="approvedBy">' + leaveList[i].approvedBy + '</td><td><i class="btn editLev fa fa-calendar-plus-o" id="editLev' + i + '" onclick="editLevDetails(this)" ></i><i class="btn dltLev fa fa-times" onclick="deleteRow(this)" data-dismiss="modal" id="dlt' + i + '"></i></td><tr>';

         $('#levListTable').append(tab)
     }
 }
 
 
 function formatDate(inputStr) {
 	var timestamp = parseInt(inputStr, 10);
  var date = new Date(timestamp);
  var a =date.toISOString().substr(0, 10);
    
  var datePart = a.match(/\d+/g),
  year = datePart[0].substring(2), 
  month = datePart[1], day = datePart[2];
  return day+'-'+month+'-'+year+'-'+a;
 
 }