JSFiddle - React, Tailwind, and code Playground
HTML
<div id="test1">
</div>JavaScript
var test2 = 5;
var appendeddatahtml = '<div class="test1"><button id="btn" type="button" value="' + test2 + '">This is it!</button></div>';
$("#test1").append(appendeddatahtml);
$(document).on('click',"#btn",function(){
alert("The button was clicked.");
});