JSFiddle - React, Tailwind, and code Playground
HTML
<input type="button" id="bar" value="ajout" />
<div id="res"></div>
JavaScript
$('#bar').click(function(){
$('#res').append( $('<input/>').attr({"type":"button","value":"nouveau","class":"foo"}) )
})
$('#res').on('click','.foo', function(){ alert('hello')})