javascript验证码验证部分返回整个表单而不是继续

Question

我正在使用来自elated.com 的联系表，并尝试实现一个基本的数学验证码。但是，当我提交表单时，无论验证码是否正确，都会弹出验证码错误的错误消息，而不是提交表单。

这部分代码是我编辑的：

function submitForm() {
    var contactForm = $(this);
    if ( !$('#senderName').val() || !$('#senderEmail').val() || !$('#message').val() ) {

        $('#incompleteMessage').fadeIn().delay(messageDelay).fadeOut();
        contactForm.fadeOut().delay(messageDelay).fadeIn();

    } 
    // this is the part of the code I added the captcha verification.
    if(('#captcha') != captcha_c) {
        $("#captchaError").slideDown(500);
        $("#captchaError").delay(messageDelay).slideUp(500);
    } else {

            $('#sendingMessage').fadeIn();
            contactForm.fadeOut();

            $.ajax( {
            url: contactForm.attr( 'action' ) + "?ajax=true",
            type: contactForm.attr( 'method' ),
            data: contactForm.serialize(),
            success: submitFinished
        });
    }

  return false;
}

HTML 表单：

<form id="contactForm" action="processForm.php" method="post">
    <h2>Send us an email...</h2>
    <ul>
        <li>
            <label for="senderName">Your Name</label>
            <input id="senderName" maxlength="40" name="senderName" placeholder="Please type your name" required="required" type="text" />
        </li>
        <li>
            <label for="senderEmail">Your Email Address</label>
            <input id="senderEmail" maxlength="50" name="senderEmail" placeholder="Please type your email address" required="required" type="email" />
        </li>
        <li>
            <label for="message" style="padding-top: .5em;">Your Message</label>
            <textarea id="message" cols="80" maxlength="10000" name="message" placeholder="Please type your message" required="required" rows="10"></textarea>
        </li>
        <li>
            <label id="captcha" for="captcha"></label>
            <input id="captcha" name="captcha" placeholder="Enter the captcha" required="required" type="text" />
            <script type="text/javascript">
                generate_captcha('captcha');
            </script>
        </li>
    </ul>
    <div id="formButtons">
        <input id="sendMessage" name="sendMessage" type="submit" value="Send Email" />
        <input id="cancel" name="cancel" type="button" value="Cancel" />
    </div>
</form>
<div id="sendingMessage" class="statusMessage">
    <p>Sending your message. Please wait...</p>
</div>
<div id="successMessage" class="statusMessage">
    <p>Thanks for sending your message! We&#39;ll get back to you shortly.</p>
</div>
<div id="failureMessage" class="statusMessage">
    <p>There was a problem sending your message. Please try again.</p>
</div>
<div id="incompleteMessage" class="statusMessage">
    <p>Please complete all the fields in the form before sending.</p>
</div>
<div id="captchaError" class="statusMessage">
    <p>Are you sure about your calculations?</p>
</div>

如果我删除评论部分，表单正在工作并继续发送电子邮件，我的 javascript 部分哪里出错了？

这里是working live example

Answer 1

改变这个：

if(('#captcha') != captcha_c) {

到这里：

if($('#captcha').val() != captcha_c) {

此外，您的标签的 id 与您的输入相同，因此请更改：

<label id="captcha" for="captcha"></label>

到

<label id="something_else" for="captcha"></label>

Answer 2

您忘记了('#captcha') 之前的$ 符号 在if(('#captcha') != captcha_c)。