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JavaScript jQuery Basics (2014) Creating a Password Confirmation Form Improving the form validation

On line 11 in app.js, implement the isUsernamePresent function. Return true if the username length is greater than 0.

Problems solving this challenge

js/app.js
//Problem: Hints are shown even when form is valid
//Solution: Hide and show them at appropriate times
var $password = $("#password");
var $confirmPassword = $("#confirm_password");
var $username = $("#username");

//Hide hints
$("form span").hide();

function isUsernamePresent() {

}

function isPasswordValid() {
  return $password.val().length > 8;
}

function arePasswordsMatching() {
  return $password.val() === $confirmPassword.val();
}

function canSubmit() {
  return isPasswordValid() && arePasswordsMatching();
}

function passwordEvent(){
    //Find out if password is valid  
    if(isPasswordValid()) {
      //Hide hint if valid
      $password.next().hide();
    } else {
      //else show hint
      $password.next().show();
    }
}

function confirmPasswordEvent() {
  //Find out if password and confirmation match
  if(arePasswordsMatching()) {
    //Hide hint if match
    $confirmPassword.next().hide();
  } else {
    //else show hint 
    $confirmPassword.next().show();
  }
}

function enableSubmitEvent() {
  $("#submit").prop("disabled", !canSubmit());
}


function usernameEvent() {
  if(isUsernamePresent()) {
    $username.next().hide();
  } else {
    $username.next().show();
  } 
}

//When event happens on password input
$password.focus(passwordEvent).keyup(passwordEvent).keyup(confirmPasswordEvent).keyup(enableSubmitEvent);

//When event happens on confirmation input
$confirmPassword.focus(confirmPasswordEvent).keyup(confirmPasswordEvent).keyup(enableSubmitEvent);

$username.focus(usernameEvent).keyup(usernameEvent).keyup(enableSubmitEvent);

enableSubmitEvent();
index.html
<!DOCTYPE html>
<html>
<head>
    <title>Sign Up Form</title>
    <link rel="stylesheet" href="css/style.css" type="text/css" media="screen" title="no title" charset="utf-8">
</head>
<body>

    <form action="#" method="post">
        <p>
            <label for="username">Username</label>
            <input id="username" name="username" type="text">
            <span>Please enter username</span>
        </p>
        <p>
            <label for="password">Password</label>
            <input id="password" name="password" type="password">
            <span>Enter a password longer than 8 characters</span>
        </p>
        <p>
            <label for="confirm_password">Confirm Password</label>
            <input id="confirm_password" name="confirm_password" type="password">
            <span>Please confirm your password</span>
        </p>
        <p>
            <input type="submit" value="SUBMIT" id="submit">
        </p>
    </form>
    <script src="//code.jquery.com/jquery-1.11.0.min.js" type="text/javascript" charset="utf-8"></script>
    <script src="js/app.js" type="text/javascript" charset="utf-8"></script>
</body>
</html>

1 Answer

Steven Parker
Steven Parker
218,833 Points

Look at the isPasswordValid function just below for an example. But instead of testing the password, test the username (and of course, for a different length).

The challenge is working.

Arsenio Strickland
Arsenio Strickland
3,156 Points

this is the answer that I put.

function isUsernamePresent() { return $username.val().lenght > 0; }

what am I doing wrong?