03. Toggling passwords in multiple forms

Change Username

Enter your username and password to change your username.

Change Password

Enter your current password and new password below.

HTML

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<h2>Change Username</h2>

  <p>Enter your username and password to change your username.</p>

  <form>
    <div>
      <label class="label" for="username">Username</label>
      <input autocomplete="off" class="input" type="text" name="username" id="username">
    </div>
    <div>
      <label class="label" for="password">Password</label>
      <input autocomplete="off" class="input" type="password" name="password" id="password">
    </div>
    <div>
      <label class="label" for="show-password">
        <input class="checkbox" type="checkbox" name="show-password" id="show-password" data-pw-toggle="#password">
        Show password
      </label>
    </div>
    <p>
      <button class="button" type="submit">Change Username</button>
    </p>
  </form>

  <h2>Change Password</h2>

  <p>Enter your current password and new password below.</p>

  <form>
    <div>
      <label class="label" for="current-password">Current Password</label>
      <input autocomplete="off" class="input" type="password" name="current-password" id="current-password">
    </div>
    <div>
      <label class="label" for="new-password">New Password</label>
      <input autocomplete="off" class="input" type="password" name="new-password" id="new-password">
    </div>
    <div>
      <label class="label" for="show-passwords">
        <input class="checkbox" type="checkbox" name="show-passwords" id="show-passwords"
          data-pw-toggle="#current-password, #new-password">
        Show passwords
      </label>
    </div>
    <p>
      <button class="button" type="submit">Change Passwords</button>
    </p>
  </form>

JavaScript

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/* In the first form, the #show-password checkbox should toggle 
the #password field visibility. In the second form, the #show-passwords checkbox
should toggle the visibility of the #current-password and #new-password fields. */

document.addEventListener('click', function (e) {
  if (!e.target.matches('[data-pw-toggle]')) return;

  const passwords = Array.prototype.slice.call(document.querySelectorAll(
    e.target.getAttribute('data-pw-toggle')));

  passwords.forEach(password => {
    if (e.target.checked) {
      password.type = 'text';
    } else {
      password.type = 'password';
    }
  })
});