JSFiddle - React, Tailwind, and code Playground

HTML

<input id="xxx" title="номер строки" value="0">
<input type="button" onclick="$('<td >dfsdfsdf</td>').appendTo('#CT'+$('#xxx').val());" value="append">
<table>
    <tr id="CT0"></tr>
    <tr id="CT1"></tr>
    <tr id="CT2"></tr>
    <tr id="CT3"></tr>    
    <tr id="CT4"></tr>
    <tr id="CT5"></tr>
    <tr id="CT6"></tr>
    <tr id="CT7"></tr>
</table>

JavaScript

$('<td >dfsdfsdf</td>').appendTo('#CT'+result.id);