Developing a user-friendly password verification form

Question

Developing a user-friendly password verification form

After multiple attempts, I'm still struggling with creating a password field for my webpage. Here's what I have come up with so far:

<form name="PasswordField" action="">
Password:
<input type="password" name="password">
<input type="button" value="Log in">
</form>

I know it's not the best, but it doesn't need to be fancy. All I need is for it to retrieve the password from the textbox and compare it to the page's set password. I'm thinking of using an if-else statement, but not sure how.

*Code to extract password from textbox when "Log in" button is clicked*
if (password = "rawr")
{alert('Correct!')}
else
{alert('Wrong Password')}

Unfortunately, after spending hours on this task, nothing seems to be working for me. I even attempted using functions, but that also didn't yield any positive results.

javascript forms passwords if-statement

Answer 1

Answer №1

If you choose to take that approach, it's important to include the validation logic within a function that is triggered by the onclick event of your button. To access the password input element in JavaScript, you can assign it an id and then use document.getElementById(id). Remember, the single equals sign = is used for assignment, whereas the double equals sign == is used for comparison :)

<head>
<script type="text/javascript">
function isValid(){
var password = document.getElementById('password').value;
if (password == "rawr")
{alert('Correct!')}
else
{alert('Wrong Password')}
}
</script>
</head>

<form name="PasswordField" action="">
Password:
<input type="password" id="password" name="password">
<input type="button" value="Log in" onclick="isValid();">
</form>

An alternative and simpler method would be to pass the password DOM node as an argument to the function:

<head>
<script type="text/javascript">
function isValid(myNode){
var password = myNode.value;
if (password == "rawr")
{alert('Correct!')}
else
{alert('Wrong Password')}
}
</script>
</head>

<form name="PasswordField" action="">
Password:
<input type="password" id="password" name="password">
<input type="button" value="Log in" onclick="isValid(this);">
</form>

Answer 2

If you choose to take that approach, it's important to include the validation logic within a function that is triggered by the onclick event of your button. To access the password input element in JavaScript, you can assign it an id and then use document.getElementById(id). Remember, the single equals sign = is used for assignment, whereas the double equals sign == is used for comparison :)

<head>
<script type="text/javascript">
function isValid(){
var password = document.getElementById('password').value;
if (password == "rawr")
{alert('Correct!')}
else
{alert('Wrong Password')}
}
</script>
</head>

<form name="PasswordField" action="">
Password:
<input type="password" id="password" name="password">
<input type="button" value="Log in" onclick="isValid();">
</form>

An alternative and simpler method would be to pass the password DOM node as an argument to the function:

<head>
<script type="text/javascript">
function isValid(myNode){
var password = myNode.value;
if (password == "rawr")
{alert('Correct!')}
else
{alert('Wrong Password')}
}
</script>
</head>

<form name="PasswordField" action="">
Password:
<input type="password" id="password" name="password">
<input type="button" value="Log in" onclick="isValid(this);">
</form>

Answer 3

Answer №2

Does this meet your needs?

document.forms['PasswordField'].elements['password'].value

Answer 4

Does this meet your needs?

document.forms['PasswordField'].elements['password'].value

Answer 5

Answer №3

After implementing some jQuery techniques, I came up with the following solution:

<html>
<head>
    <script type="text/javascript" src="jquery-2.1.3.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function() {
            $("input[name='submit']").click(function() {
                var password = $("input[name='password']").val();

                if(password === "secure123") {
                    alert('Access Granted!');
                } else {
                    alert('Incorrect Password');
                }
            });
        });
    </script>

</head>

<body>
    <form name="LoginForm" action="">
    Password:<input type="password" name="password">
    <input type="button" value="Submit" name="submit">
    </form>
</body>

</html>

Answer 6

After implementing some jQuery techniques, I came up with the following solution:

<html>
<head>
    <script type="text/javascript" src="jquery-2.1.3.min.js"></script>
    <script type="text/javascript">
        $(document).ready(function() {
            $("input[name='submit']").click(function() {
                var password = $("input[name='password']").val();

                if(password === "secure123") {
                    alert('Access Granted!');
                } else {
                    alert('Incorrect Password');
                }
            });
        });
    </script>

</head>

<body>
    <form name="LoginForm" action="">
    Password:<input type="password" name="password">
    <input type="button" value="Submit" name="submit">
    </form>
</body>

</html>

Developing a user-friendly password verification form

Answer №1

Answer №2

Answer №3

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