我正在开发一个简单的表单验证脚本,它只是检查字段是否为空(稍后将添加进一步的高级验证)。
但是,在提交时,表单似乎继续提交,即使我使用的是preventDefault()
. 有人可以帮我检查一下我的语法和逻辑,找出问题所在吗?在表单正常提交之前,我得到了验证。
小提琴:http: //jsfiddle.net/qb9KS/1/
HTML
<form id="userForm" method="POST" action="form-process.php">
<div>
<fieldset>
<legend>User Information</legend>
<div id="errorDiv"></div>
<label for="name">Name:*</label>
<input type="text" id="name" name="name" />
<span class="errorFeedback errorSpan" id="nameError">Name is required</span>
<br />
<label for="city">City:</label>
<input type="text" id="city" name="city" />
<br />
<label for="state">State:</label>
<select id="state" name="state">
<option></option>
<option>Alabama</option>
<option>California</option>
<option>Colorado</option>
<option>Florida</option>
<option>Illinois</option>
<option>New Jersey</option>
<option>New York</option>
<option>Wisconsin</option>
</select>
<br />
<label for="zip">ZIP:</label>
<input type="text" id="zip" name="zip" />
<br />
<label foe="email">Email Address:*</label>
<input type="text" id="email" name="email" />
<span class="errorFeedback errorSpan" id="emailError">Email is required</span>
<br />
<label for="phone">Telephone Number:</label>
<input type="text" id="phone" name="phone" />
<span class="errorFeedback errorSpan" id="phoneError">Format: xxx-xxx-xxxx</span>
<br />
<label for="work">Number Type:</label>
<input class="radioButton" type="radio" name="phoneType" id="work" value="work" />
<label class="radioButton" for="work">Work</label>
<input class="radioButton" type="radio" name="phoneType" id="home" value="home" />
<label class="radioButton" for="home">Home</label>
<span class="errorFeedback errorSpan" id="phonetypeError">Please choose an option</span>
<br />
<label for="password1">Password:*</label>
<input type="password" id="password1" name="password1" />
<span class="errorFeedback errorSpan" id="password1Error">Password required</span>
<br />
<label for="password2">Verify Password:*</label>
<input type="password" id="password2" name="password2" />
<span class="errorFeedback errorSpan" id="password2Error">Passwords don't match</span>
<br />
<input type="submit" id="submit" name="submit">
</fieldset>
</div>
</form>
Javascript
$(document).ready(function() {
$("#userForm").submit(function(e) {
removeFeedback();
var errors = validateForm();
if (errors == "") {
return true;
}
else {
provideFeedback(errors);
e.preventDefault();
return false;
}
});
function validateForm() {
var errorFields = new Array();
if ($('#name').val() == "") {
errorFields.push('name');
}
if ($('#email').val() == "") {
errorFields.push('email');
}
if ($('#password1').val() == "") {
errorFields.push('password1');
}
return errorFields;
}
function provideFeedback(incomingErrors) {
for (var i = 0; i < incomingErrors.length; i++) {
$("#" + incomingErrors[i]).addClass("errorClass");
$("#" + incomingErrors[i] + "Error").removeclass("errorFeedback");
}
$("#errorDiv").html("Errors encountered");
}
function removeFeedback() {
$("#errorDiv").html("");
$('input').each(function() {
$(this).removeClass("errorClass");
});
$('.errorSpan').each(function() {
$(this).addClass("errorFeedback");
});
}
});