I need to add some further validation to this password code. I created a if statement where if any of the conditions fail, the condition that failed will print out the relevant message. I tried adding validation for:

• Password must have 1 Digit (0-9)


• Password must have 1 UpperCase (A-Z)


• Password must have 1 LowerCase (a-z)

Javascript code:

<script type=text/javascript>

function check_form() {

    var passw = document.getElementById('password-input-0').value;

    var passw2 = document.getElementById('password-input-1').value;

    var letter = /[a-zA-Z]/;

    var number = /[0-9]/;



    if (passw.length < 6 || passw != passw2 || !letter.test(passw) || !number.test(passw)) {

        if (passw.length < 6) {

            alert(Please make sure password is longer than 6 characters.)

            return false;

        }

        if (passw != passw2) {

            alert(Please make sure passwords match.)

            return false;

        }

        if (!letter.test(passw)) {

            alert(Please make sure Password Includes an UpperCase and LowerCase character)

            return false;

        }

        if (!number.test(passw)) {

            alert(Please make sure Password Includes a Digit)

            return false;

        }



        /*email test*/

        var email = document.getElementById('email-input-0').value;

        var filter = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;

        if (!filter.test(email)) {

            alert('Please provide a valid email address');

            form.email.focus;

            return false;

        }





        return true;

    }

}

</script>

This code doesn't seem to work and being an inexperience JS programmer I'm not sure why it's not working. I've left the email-validation just to make sure the fix doesn't interfere with it. Thanks for reading!

Fiddle