JSFiddle - React, Tailwind, and code Playground

HTML

<table> 
    <tbody> 
      <tr> 
     <td class="TargetRow">Not this one</td> 
      </tr> 
    </tbody> 
    <tbody> ... </tbody> 
    <tbody> 
      <tr> 
     <td class="TargetRow">This one</td> 
      </tr> 
    </tbody> 
    <tbody> ... </tbody> 
    <tbody> 
        <tr class="ContextRow"> ... </tr> 
    </tbody> 
</table>

JavaScript

alert($('.ContextRow').closest("tbody").siblings('tbody td.TargetRow:last').text());