我有3个关于JQuery语法的问题:
1)模态没有出现。这可能是操作员(&&)问题?我怎么做对了?它应该只在事物有效时出现。
2)如何将提交阻止默认与有效类组合?我之前使用过,但从未与JQuery结合使用过。我希望模式仅显示is_email何时有效以及何时填写InputEmail,InputMessage和InputName字段。
$('#submit').click(function(submit){
if($('#InputEmail'&&'#InputMessage'&&'#InputName').val().length === 0)&& (is_email=="valid") {
$('#myModal').modal('show');
submit.preventDefault();
}
);
4)如果我把col-lg6,它会改变大小,但是文档说我必须添加它:
$('.message-group').attr({
class: 'has-success'
有效,但如果我添加col-lg6 form-group name-group,它将改变大小。为什么是这样?
我的语法是:
/*JQUERY FORM EFFECTS*/
/*$('#InputName').on('input', function() {
var input=$(this);
var is_name=input.val();
if(is_name){input.removeClass("invalid").addClass("valid");}
else{input.removeClass("valid").addClass("invalid");}
}); Can I comment that out? */
$('#InputEmail').on('input', function() {
var input=$(this);
var re = /^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/;
var is_email=re.test(input.val());
if(is_email){
input.removeClass("invalid").addClass("valid");
}
else{
input.removeClass("valid").addClass("invalid");
}
});
/* Display please enter a name. */
$('#InputName').focusout(function(){
if($('#InputName').val().length === 0) {
$('.name-group .message-block').text('Please enter your name.');
$('.name-group').attr({
class: 'has-error'
}); // end attr
} else {
$('.name-group .message-block').text('');
$('.name-group').attr({
class: 'has-success'
}); //end attr
}
}); //end focus out
$('#InputMessage').focusout(function(){
if($('#InputMessage').val().length === 0) {
$('.message-group .message-block').text('Please enter your message.');
$('.message-group').attr({
class: 'has-error'
}); // end attr
} else {
$('.message-group .message-block').text('');
$('.message-group').attr({
class: 'has-success'
}); //end attr
}
}); //end focus out
$('#InputEmail').focusout(function(){
if($('#InputEmail').val().length === 0) {
$('.mail-group .email-block').text('Please enter your email.');
$('.mail-group').attr({
class: 'has-error'
}); // end attr
} else {
$('.mail-group .email-block').text('');
$('.mail-group').attr({
class: 'has-success'
}); //end attr
}
}); //end focus out
$('#submit').click(function(submit){
if($('#InputEmail'&&'#InputMessage'&&'#InputName').val().length === 0)&& (is_email=="valid") {
$('#myModal').modal('show');
submit.preventDefault();
}
);
我的表格:
<div class="form-group name-group">
<label for="InputName">Your Name</label>
<div class="input-group">
<input type="text" class="form-control" name="InputName" id="InputName" placeholder="Enter Name" required>
<span class="input-group-addon">
<i class="glyphicon glyphicon-ok form-control-feedback"></i>
</span>
</div>
<span class="text-block"></span>
</div>
<div class="form-group mail-group">
<label for="InputEmail">Your Email</label>
<div class="input-group">
<input type="email" class="form-control" id="InputEmail" name="InputEmail" placeholder="Enter Email" required>
<span class="input-group-addon">
<i class="glyphicon glyphicon-ok form-control-feedback"></i>
</span>
</div>
<span class="email-block"></span>
</div>
<div class="form-group message-group">
<label for="InputMessage">Message</label>
<div class="input-group"
>
<textarea name="InputMessage" id="InputMessage" class="form-control" rows="5" required></textarea>
<span class="input-group-addon"><i class="glyphicon glyphicon-ok form-control-feedback"></i></span>
</div>
<span class="message-block"></span>
</div>
<input type="submit" name="submit" id="submit" value="Submit" class="btn btn-info pull-right">
</div>
</form>
答案 0 :(得分:1)
你能用myModal的id显示你的div的标记吗?
另外,你在寻找多选吗?如果是这样,这里有一个链接到jQuery的文档,在单个选择器调用中包含多个元素查询:http://api.jquery.com/multiple-selector/
更像是:
if($('#InputEmail,#InputMessage,#InputName').val().length === 0)
{
alert('not filled out');
return false;
}
else return true;
此外,如果这是直接复制/粘贴,您在if语句中缺少右括号:
if($('#InputEmail'&&'#InputMessage'&&'#InputName').val().length === 0)&& (is_email=="valid"))
另外,你能否澄清一下你在bootstrap .css问题中提出的问题?