JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container"></div>

JavaScript

$('#container form').on('click', '#sendbutton', function () {
    var value_login = $("#login").val();
    var value_password = $("#password").val();
    alert(value_login + value_password);
});

$('#container').append("<form class='input-form'><input type='text' id='login' /><input type='password' id='password' /><input type='submit' id='sendbutton' /></form>");