JSFiddle - React, Tailwind, and code Playground

by Santosh Thakur

HTML

<div class="container">
  <div id="demo">
    this is text
  </div>
</div>

SCSS

.container {
  border: 1px solid green;
  padding: 10px;
  div {
    border: 1px solid gray;
    color: red;
    span {
      border: 1px solid lime;
      padding: 10px;
      display: inline-block;
    }
  }
}

JavaScript

var dupArr = ['john', 'hari', 'mohan', 'hari', 'dev', 'john'];

var uniqueArr = [];
for (var arr in dupArr) {
  if (arr == dupArr.indexOf(dupArr[arr])) {
    uniqueArr.push('<b>' + dupArr[arr] + '</b>');
  }
  document.getElementById("demo").innerHTML = uniqueArr;
}