JSFiddle - React, Tailwind, and code Playground

HTML

<table>
  <tr class="row even">
    <td><input type="checkbox" checked/></td>
    <td class="name">foo</td>
    <td class="metric">22</td>
  </tr>
  <tr class="row even">
    <td><input type="checkbox"/></td>
    <td class="name">foo</td>
    <td class="metric">33</td>
  </tr>
</table>

JavaScript

alert($('tr:has(input:checked) > .metric').text());