let login = document.querySelector('#login');
let password = document.querySelector('#password');
let submit = document.querySelector('#submit');
let users = {};
function User(login, password) {
this.login = login;
this.password = password;
}
function creatId(users) {
return Object.keys(users).length;
}
submit.addEventListener('click', () => {
const loginUser = login.value;
const passwordUser = password.value;
const user = new User(loginUser, passwordUser);
const userId = 'User' + creatId(users);
users[userID] = user;
console.log(users);
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<script src="js/js.js"></script>
<meta charset="utf-8">
<link rel="stylesheet" href="css/css.css">
<title></title>
</head>
<body>
<div class="container">
<div class="lgps">
<ul>
<li><input type="text" name="login" value=""
placeholder="login"
id="login">
</li>
<li><input type="password" name="password" value=""
placeholder="password"
id="password">
</li>
</ul>
<div class="submits">
<button type="submit" name="button"
id="submit">OK</button>
</div>
</div>
</div>
</body>
</html>