loop parse json

HTML

<table>
  <tr>
    <th>Username</th>
    <th>First Name</th>
    <th>Last Name</th>
  </tr>
</table>

CSS

@import url(https://fonts.googleapis.com/css?family=Press+Start+2P|Roboto+Condensed);
@import url(https://fonts.googleapis.com/css?family=Press+Start+2P|Roboto+Condensed);
@import url(https://fonts.googleapis.com/css?family=Press+Start+2P|Roboto+Condensed);
body {
  font-family: Press Start\ 2P, cursive;
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  background-color: #000
}

.App {
  text-align: center
}

.App-logo {
  -webkit-animation: App-logo-spin infinite 20s linear;
  animation: App-logo-spin infinite 20s linear;
  height: 80px
}

.App-header {
  background-color: #222;
  height: 150px;
  padding: 20px;
  color: #fff
}

.App-title {
  font-size: 1.5em
}

.App-intro {
  font-size: large
}

@-webkit-keyframes App-logo-spin {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg)
  }
  to {
    -webkit-transform: rotate(1turn);
    transform: rotate(1turn)
  }
}

@keyframes App-logo-spin {
  0% {
    -webkit-transform: rotate(0deg);
    transform: rotate(0deg)
  }
  to {
    -webkit-transform: rotate(1turn);
    transform: rotate(1turn)
  }
}

.gameContainer {
  display: -ms-flexbox;
  display: flex
}

.error-marker {
  position: absolute;
  background-color: #ff0
}

body {
  font-family: Lato, sans-serif;
  height: 100%
}

a {
  text-decoration: none
}

label {
  display: block
}

nav a {
  display: inline-block;
  margin: 1em
}

@font-face {
  font-family: Lato, sans-serif;
  src: url("https://fonts.googleapis.com/css?family=Lato")
}

.styleSection {
  height: 100%;
  background-position: 50%;
  background-repeat: no-repeat;
  background-image: url("https://res.cloudinary.com/artwork-archive/image/upload/t_jpg_large/v1/user_4446/JillMcLean_BeyondAllDoubt_OilCanvas_43x36_2014_yxcbjr")
}

.carousel-caption {
  position: absolute;
  z-index: 1;
  display: table;
  width: 100%;
  height: 100%
}

.absolute-div {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0
}

.carousel-caption h3 {
  display: table-cell;
 ...

JavaScript

$(document).ready(function() {
      var json = [{
          "userId": "canMan5",
          "jobTitleName": "Developer",
          "firstName": "Eric",
          "lastName": "Franz",
          "preferredFullName": "Mr Franz",
          "employeeCode": "E1",
          "region": "CA",
          "phoneNumber": "408-1234567",
          "emailAddress": "[email protected]"
        },
        {
          "userId": "nirani",
          "jobTitleName": "Designer",
          "firstName": "Neil",
          "lastName": "Irani",
          "preferredFullName": "Neil Irani",
          "employeeCode": "E2",
          "region": "CA",
          "phoneNumber": "408-1111111",
          "emailAddress": "[email protected]"
        },
        {
          "userId": "tHanks",
          "jobTitleName": "Program Directory",
          "firstName": "Tom",
          "lastName": "Hanks",
          "preferredFullName": "Tom Hanks",
          "employeeCode": "E3",
          "region": "CA",
          "phoneNumber": "408-2222222",
          "emailAddress": "[email protected]"
        },
        {
          "userId": "nCage",
          "jobTitleName": "Actor",
          "firstName": "Nic",
          "lastName": "Cage",
          "preferredFullName": "Nic Cage",
          "employeeCode": "E19",
          "region": "CA",
          "phoneNumber": "408-1234567",
          "emailAddress": "[email protected]"
        }
      ];
      var tr;
      for (var i = 0; i < json.length; i++) {
        tr = $('<tr/>');
        tr.append("<td>" + json[i].userId + "</td>");
        tr.append("<td>" + json[i].firstName + "</td>");
        tr.append("<td>" + json[i].lastName + "</td>");
        $('table').append(tr);
      }
    });