JSFiddle - React, Tailwind, and code Playground

HTML

<form name="frm" id="frm" method="POST" action="">
   <input type="text" name="nome" id="nome" value="" />
   <input type="text" name="sobrenome" id="sobrenome" value="" />
   <input type="submit" name="enviar" id="enviar" value="Enviar" />
</form>
<div id="exibir_valor"></div>

JavaScript

$("#enviar").click(function(e) {
     e.preventDefault();
     $.ajax({
       type:'POST',
         data: {
             html: $("#frm").serialize(),
             delay: 1
         },
       url:'/echo/html/',
       success:function(data) {
         $( "#exibir_valor" ).html(data);
       }
     });
   });