javascript - 没有 http ://的 jQuery 验证 URL

Question

<分区>

Answer 1

问题是因为您已经定义了名为 validUrl 的规则，但您仍在 $.validate 中的元素上设置 url 规则 设置。另请注意，您要将 bool 值而不是字符串传递给属性。试试这个:

$(document).ready(function() {
  $.validator.addMethod('validUrl', function(value, element) {
    var url = $.validator.methods.url.bind(this);
    return url(value, element) || url('http://' + value, element);
  }, 'Please enter a valid URL');

  $("#form").validate({
    rules: {
      "url": {
        validUrl: true // <-- change this
      }
    },
    submitHandler: function(form) {
      alert('valid form submitted'); // for demo
      return false; // for demo
    }
  });
});

body {
  padding: 20px;
}

label {
  display: block;
}

input.error {
  border: 1px solid red;
}

label.error {
  font-weight: normal;
  color: red;
}

button {
  display: block;
  margin-top: 20px;
}

<script type="text/javascript" src="//code.jquery.com/jquery-2.0.2.js"></script>
<script type="text/javascript" src="https://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.0/jquery.validate.min.js"></script>
<link rel="stylesheet" type="text/css" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.11.0/additional-methods.js"></script>
<form id="form" method="post" action="#">
  <input type="text" name="url" id="url" />
  <button type="submit">Submit</button>
</form>