密码和确认密码不匹配

Question

我有一个密码和确认密码字段，如下所示。enter image description here

我在其他 2 种不同的形式中使用了相同的元素和脚本，但其中一种形式不起作用。

var password = document.getElementById('pwd'), confirm_password = document.getElementById('cpwd');
 function validatePassword() {
  if (password.value != confirm_password.value) {
   confirm_password.setCustomValidity('Passwords Don\'t Match');
  } else {
   confirm_password.setCustomValidity('');
  }
 }
 password.onchange = validatePassword;
 confirm_password.onkeyup = validatePassword;

<div class="input-field col s12 m6">
  <input id="pwd" name="pwd" type="password" class="validate" minlength="8" required="">
  <label for="pwd" data-error="Please enter a name of length minum 8 characters" data-success="Perfect!">Desired Password<span class="red-text">&nbsp;*</span></label>
</div>
     
<div class="input-field col s12 m6">
  <input id="cpwd" name="cpwd" type="password" class="validate"  required="">
  <label for="cpwd" data-error="Please enter the same password again" data-success="Perfect!">Confirm password<span class="red-text">&nbsp;*</span></label>
</div>


  <!-- Compiled and minified CSS -->
  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.98.0/css/materialize.min.css">

      <script type="text/javascript" src="https://code.jquery.com/jquery-2.1.1.min.js"></script>
      
  <!-- Compiled and minified JavaScript -->
  <script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.98.0/js/materialize.min.js"></script>

Answer 1

我建议不要使用 keyup 或 change 事件，而是收听 input 事件。

来自the relevant article on MDN：

The DOM input event is fired synchronously when the value of an <input> or <textarea> element is changed.

var password = document.getElementById('pwd'),
  confirm_password = document.getElementById('cpwd');

function validatePassword() {
  if (password.value !== confirm_password.value) {
    confirm_password.setCustomValidity("Passwords Don't Match");
  } else {
    confirm_password.setCustomValidity('');
  }
}
password.oninput = validatePassword;
confirm_password.oninput = validatePassword;

<div class="input-field col s12 m6">
  <input id="pwd" name="pwd" type="password" class="validate" minlength="8" required="">
  <label for="pwd" data-error="Please enter a name of length minum 8 characters" data-success="Perfect!">Desired Password<span class="red-text">&nbsp;*</span></label>
</div>

<div class="input-field col s12 m6">
  <input id="cpwd" name="cpwd" type="password" class="validate" required="">
  <label for="cpwd" data-error="Please enter the same password again" data-success="Perfect!">Confirm password<span class="red-text">&nbsp;*</span></label>
</div>

Answer 2

Password: <input id="pwd" name="pwd" type="password"><br><br>
Conform Password: <input id="cpwd" name="cpwd" type="password">
<div id="errorMsg"></div>
<script>
var password = document.getElementById('pwd');
confirm_password = document.getElementById('cpwd');
    function validatePassword() {
        if ((confirm_password.value!='')&&(password.value != confirm_password.value)) {
            document.getElementById('errorMsg').innerHTML='Passwords Don\'t Match';
        } else {
            document.getElementById('errorMsg').innerHTML='';
        }
    }
    password.onchange = validatePassword;
    confirm_password.onkeyup = validatePassword;
</script>

Answer 3

显然这只是其余脚本中的 class 冲突，因此没有任何问题。

抱歉给您带来麻烦。

感谢您的所有努力。

密码和确认密码不匹配

Password and confirm password don't match

html

javascript

html5-validation