JSFiddle - React, Tailwind, and code Playground

HTML

<div id="lectures" class="form_block" style="">
  <table style="width: 100%;">
    <thead>
      <tr>
        <th>Num&Atilde;&copy;ro</th>
        <th>kWh</th>
        <th>Wmax</th>
        <th>VAmax</th>
        <th>Wcum</th>
        <th>VAcum</th>
        <th style="width: 100px;">Status</th>
      </tr>
    </thead>

    <tbody>
      <tr id="1272918584475">
        <td><input type="hidden" name="ID_COMPTEUR" value="1" style=
        "width: 98%;"><input type="text" readonly="readonly" name="NUMERO_COMPTEUR"
        value="0005" style="width: 98%;"></td>

        <td><input type="text" name="kWh" value="" style="width: 98%;"></td>
        <td><input type="text" name="Wmax" value="" style="width: 98%;"></td>
        <td><input type="text" name="VAmax" value="" style="width: 98%;"></td>
        <td><input type="text" name="Wcum" value="" style="width: 98%;"></td>
        <td><input type="text" name="VAcum" value="" style="width: 98%;"></td>
        <td>enregistr&Atilde;&copy;</td>
      </tr>

      <tr id="1272918586676">
        <td><input type="hidden" name="ID_COMPTEUR" value="1" style=
        "width: 98%;"><input type="text" readonly="readonly" name="NUMERO_COMPTEUR"
        value="0005" style="width: 98%;"></td>

        <td><input type="text" name="kWh" value="" style=
        "width: 98%;" id="1272918587192"></td>

        <td><input type="text" name="Wmax" value="" style="width: 98%;"></td>
        <td><input type="text" name="VAmax" value="" style="width: 98%;"></td>
        <td><input type="text" name="Wcum" value="" style="width: 98%;"></td>
        <td><input type="text" name="VAcum" value="" style="width: 98%;"></td>
        <td>en attente...</td>
      </tr>
    </tbody>
  </table>
</div>

JavaScript

$(document).ready(function(){
 $("table").parent().find('tr:last > td:nth-child(2) > input').focus();
})