让我告诉你我在做什么。这是我正在做的一些功课，现在已经卡住了。我正在创建一个页面，您可以从一堆不同的复选框中进行选择。根据复选框，您可以单击我已编程的“显示资源”按钮，打开一个带有相应复选框的新窗口以显示其值，它们的值也是这些特定资源的URL。听起来很容易吗？这是事物的基本结构。
//this is the main function that is making an array of the checked check boxes and displying them on the new window, problem is I am only able to set the href attibute to only the first array item...
$(function() {
$(":checkbox").change(function() {
var arr = $(":checkbox:checked").map(function() { return $(this).val(); }).get();
$("#messagepop").html('<a id="resourceLink">' + arr.join('</a><br><a id="resourceLink">') + '</a>');
for (var i = 0; i < arr.length; i++){
$("#resourceLink").attr('href', arr[i]);
}
});
});
//these are functions for the new window
function deselect(e) {
$('.pop').slideFadeToggle(function() {
e.removeClass('selected');
});
}
$(function() {
$('#contact').on('click', function() {
if($(this).hasClass('selected')) {
deselect($(this));
} else {
$(this).addClass('selected');
$('.pop').slideFadeToggle();
}
return false;
});
$('.close').on('click', function() {
deselect($('#contact'));
return false;
});
});
$.fn.slideFadeToggle = function(easing, callback) {
return this.animate({ opacity: 'toggle', height: 'toggle' }, 'fast', easing, callback);
};.messagepop {
background-color:#FFFFFF;
border:1px solid #999999;
cursor:default;
display:none;
margin-top: 15px;
position:absolute;
text-align:left;
width:394px;
z-index:50;
padding: 25px 25px 20px;
}
label {
display: block;
margin-bottom: 3px;
padding-left: 15px;
text-indent: -15px;
}
.messagepop p, .messagepop.div {
border-bottom: 1px solid #EFEFEF;
margin: 8px 0;
padding-bottom: 8px;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="slide4">
<h1>Resources</h1>
<p>(Select the resources you wish to receive information about. Click on the "Show Resources" button when you are ready)</p>
<form action="">
<input type="checkbox" value="https://google.com/search?q=CareerPreparation">Career Preparation<br>
<input type="checkbox" value="https://google.com/search?q=CollegeAdvising">College Advising<br>
<input type="checkbox" value="https://www.google.com/search?q=financial+aid">Financial Aid<br>
<input type="checkbox" value="https://www.google.com/search?q=fitness+recreation">Fitness & Recreation<br>
<input type="checkbox" value="https://www.google.com/search?q=health+services">Health Services<br>
<input type="checkbox" value="https://www.google.com/search?q=housing">Housing<br>
<input type="checkbox" value="https://www.google.com/search?q=library">Library<br>
<input type="checkbox" value="https://www.google.com/search?q=parking">Parking<br>
<input type="checkbox" value="https://www.google.com/search?q=housing">Scholarships<br>
<input type="checkbox" value="https://www.google.com/search?q=student+employment">Student Employment<br>
<input type="checkbox" value="https://www.google.com/search?q=student+organization">Student Organizations<br>
<input type="checkbox" value="https://www.google.com/search?q=tutoring">Tutoring Support<br>
<input type="checkbox" value="https://www.google.com/search?q=writing">Writing Support<br>
</form>
<div class="messagepop pop">
<p><a class="close" href="/">Close</a></p>
<div id="messagepop" >
</div>
</div>
<a href="/contact" id="contact">Show Resources</a>
</div>
所以我遇到的问题是我无法在新div窗口中显示的新<a>标记上正确设置href属性。所有这些的关键是我必须使用选中的复选框创建一个数组，并将它们链接到适当的资源。
所以真正的问题是，我错过了什么？我可以看到数组有正确的元素链接，所以为什么它们没有显示在其余的显示元素上。希望这是有道理的，请告诉我，如果我在这里向您展示的内容令人困惑，或者我需要澄清，谢谢！
答案 0 :(得分：1)
您正在为多个元素设置相同的ID，这是一个SIN。
$("#messagepop").html('<a class="resourceLink">' + arr.join('</a><br><a class="resourceLink">') + '</a>');
for (var i = 0; i < arr.length; i++){
$(".resourceLink").eq(i).attr('href', arr[i]);
}
答案 1 :(得分：0)
根本不需要使用id - 至少在显示的代码中没有。
$(":checkbox").change(function() {
var messagepop = $("#messagepop");
// remove all child nodes
messagepop.empty();
// add the checked items as anchor tags
$(":checkbox:checked").each(function() {
var val = $(this).val();
$('<a />')
.attr("href", val)
.text(val)
.appendTo(messagepop);
});
});<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="slide4">
<h1>Resources</h1>
<p>(Select the resources you wish to receive information about. Click on the "Show Resources" button when you are ready)</p>
<form action="">
<input type="checkbox" value="https://google.com/search?q=CareerPreparation">Career Preparation
<br>
<input type="checkbox" value="https://google.com/search?q=CollegeAdvising">College Advising
<br>
<input type="checkbox" value="https://www.google.com/search?q=financial+aid">Financial Aid
<br>
<input type="checkbox" value="https://www.google.com/search?q=fitness+recreation">Fitness & Recreation
<br>
<input type="checkbox" value="https://www.google.com/search?q=health+services">Health Services
<br>
<input type="checkbox" value="https://www.google.com/search?q=housing">Housing
<br>
<input type="checkbox" value="https://www.google.com/search?q=library">Library
<br>
<input type="checkbox" value="https://www.google.com/search?q=parking">Parking
<br>
<input type="checkbox" value="https://www.google.com/search?q=housing">Scholarships
<br>
<input type="checkbox" value="https://www.google.com/search?q=student+employment">Student Employment
<br>
<input type="checkbox" value="https://www.google.com/search?q=student+organization">Student Organizations
<br>
<input type="checkbox" value="https://www.google.com/search?q=tutoring">Tutoring Support
<br>
<input type="checkbox" value="https://www.google.com/search?q=writing">Writing Support
<br>
</form>
</div>
<div class="messagepop pop">
<div id="messagepop"></div>
</div>