JSFiddle - React, Tailwind, and code Playground
JavaScript
var login = prompt('login', '');
if (login == 'admin'){
var password = prompt('Пароль');
}else if (login == ""){
alert('Cancel');
}else {
alert('Нет доступа')
}if (password == 'password'){
alert('Добро');
}else if(password != 'password') {
alert('Неверный пароль');
}