JSFiddle - React, Tailwind, and code Playground

HTML

<div id='append'></div>
<button id='clickme'>Click</button>

JavaScript

$(document).ready(function(){
var data="<table><td class='format-this'>1000</td><td class='format-this'>1000</td></table>";
    $('#clickme').click(function(){
        var MyDataToFormat = $("<div></div>").html(data);
        
        $(MyDataToFormat).find('.format-this').each(function() {
        
            $(this).html("crap");
        });
        
        $('#append').html($(MyDataToFormat).html())
    });
});