JSFiddle - React, Tailwind, and code Playground

JavaScript

$(document).ready(function(){
var datahtml = $("<html><body><div class=\"class0\"><h4>data1</h4><p class=\"class1\">data2</p><div id=\"mydivid\"><p>data3</p></div></div></body></html>".replace("\\", ""));
    var tempContainer = $('<div style="display:none;"></div>');
        $(tempContainer).append(datahtml);
        $('body').append(tempContainer);
        alert($(tempContainer).find('.class1').text());
        $(tempContainer).remove();                                                                                                                                                        });