JSFiddle - React, Tailwind, and code Playground

by MegaScience

HTML

<table>
  <tr>
    <td class="dddefault">Closed</td>
    <td class="dddefault">Cat</td>
    <td class="dddefault">Dog</td>
    <td class="dddefault">Monkey</td>
    <td class="dddefault">Chimp</td>
    <td class="dddefault">Chimp</td>
  </tr>
  <tr>
    <td class="dddefault">Closed</td>
    <td class="dddefault">Cat</td>
    <td class="dddefault">Dog</td>
    <td class="dddefault">Monkey</td>
    <td class="dddefault">Chimp</td>
  </tr>
  <tr>
    <td class="dddefault">Closed</td>
    <td class="dddefault">Cat</td>
    <td class="dddefault">Dog</td>
    <td class="dddefault">Monkey</td>
    <td class="dddefault">Chimp</td>
  </tr>
  <tr>
    <td class="dddefault">Closed</td>
    <td class="dddefault">Cat</td>
    <td class="dddefault">Dog</td>
    <td class="dddefault">Monkey</td>
    <td class="dddefault">Chimp</td>
  </tr>
  <tr>
    <td class="dddefault">Duplicate</td>
    <td class="dddefault">Cat</td>
    <td class="dddefault">Dog</td>
    <td class="dddefault">Monkey</td>
    <td class="dddefault">Chimp</td>
  </tr>
  <tr>
    <td class="dddefault">Duplicate</td>
    <td class="dddefault">Cat</td>
    <td class="dddefault">Dog</td>
    <td class="dddefault">Monkey</td>
    <td class="dddefault">Chimp</td>
  </tr>
</table>

JavaScript

function checkClasses() {
  var statuses = document.querySelectorAll('td.dddefault:first-child');
  for (var i = 0, len = statuses.length, j; i < len; i++) {
    j = statuses[i].innerHTML.indexOf("Duplicate");
    if (j > -1) {
      alert(j);
    }
  }
  classTimeout = setTimeout(checkClasses, 60000);
}

var classTimeout;
checkClasses();