I need to make changes to the java script code I need to make a conform pasword feild here is the JS code var myInput

I need to make changes to the java script code I need to make a conform pasword feild

here is the JS code

This is the php code;

$username = "root";

$password = "";

$hostname = "localhost";

$dbname = "lab";

$selected = mysqli_connect($hostname, $username, $password, $dbname);

if(isset($_POST['user']) && isset($_POST['pass'])){

$user = $_POST['user'];

$pass = $_POST['pass'];

$query = "SELECT * FROM users WHERE username='$user'";

$result = mysqli_query($selected, $query);

if(mysqli_num_rows($result) > 0 ) { //check if there is already an entry for that username

echo "Username already exists!";

}else{

$query = "INSERT INTO users (username, password) VALUES ('$user', '$pass')";

$result = mysqli_query($selected, $query);

header("location:index.php");

}

}

mysqli_close($selected);

?>

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" method="POST">

Username:

Password:

Here is the SQL

CREATE TABLE IF NOT EXISTS users(

id int(11) NOT NULL AUTO_INCREMENT,

username varchar(50) NOT NULL,

password varchar(255) NOT NULL,

created_at datetime DEFAULT CURRENT_TIMESTAMP,

PRIMARY KEY (id),

UNIQUE KEY username(username)

) ;