how to check confirm password field in form without reloading page

Question

I have a project in which I have to add a registration form and I want to to validate that the password and confirm fields are equal without clicking the register button.

Answer 1

function check() {
    if(document.getElementById('password').value ===
            document.getElementById('confirm_password').value) {
        document.getElementById('message').innerHTML = "match";
    } else {
        document.getElementById('message').innerHTML = "no match";
    }
}

password :


confirm password: