我需要添加一个onHover事件，当人们将鼠标悬停在标签云中的任何项目上时，下面是代码。我觉得这其中有些矛盾。现在根本不触发。
<html>
<head>
<title>jQCloud Example</title>
<link rel="stylesheet" type="text/css" href="../jqcloud/jqcloud.css" />
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.js"></script>
<script type="text/javascript" src="../jqcloud/jqcloud-1.0.3.js"></script>
<script type="text/javascript">
var word_list = [
{text: "Lorem", weight: 13, link: "https://github.com/DukeLeNoir/jQCloud"},
{text: "Ipsum", weight: 10.5, html: {title: "My Title", "class": "custom-class"}, link: {href: "http://jquery.com/", target: "_blank"}},
{text: "Dolor", weight: 9.4},
{text: "Sit", weight: 8},
{text: "Amet", weight: 6.2},
{text: "Consectetur", weight: 5},
{text: "Adipiscing", weight: 5},
{text: "Elit", weight: 5},
{text: "Nam et", weight: 5},
{text: "Leo", weight: 4},
{text: "Sapien", weight: 4},
{text: "Pellentesque", weight: 3},
{text: "habitant", weight: 3},
{text: "morbi", weight: 3},
{text: "tristisque", weight: 3},
{text: "senectus", weight: 3},
{text: "et netus", weight: 3},
{text: "et malesuada", weight: 3},
{text: "fames", weight: 2},
{text: "ac turpis", weight: 2},
{text: "egestas", weight: 2},
{text: "Aenean", weight: 2},
{text: "vestibulum", weight: 2},
{text: "elit", weight: 2},
{text: "sit amet", weight: 2},
{text: "metus", weight: 2},
{text: "adipiscing", weight: 2},
{text: "ut ultrices", weight: 2},
{text: "justo", weight: 1},
{text: "dictum", weight: 1},
{text: "Ut et leo", weight: 1},
{text: "metus", weight: 1},
{text: "at molestie", weight: 1},
{text: "purus", weight: 1},
{text: "Curabitur", weight: 1},
{text: "diam", weight: 1},
{text: "dui", weight: 1},
{text: "ullamcorper", weight: 1},
{text: "id vuluptate ut", weight: 1},
{text: "mattis", weight: 1},
{text: "et nulla", weight: 1},
{text: "Sed", weight: 1}
];
$(function() {
$("#my_favorite_latin_words").jQCloud(word_list);
$('span').hover(function() {
alert('a');
});
});
</script>
</head>
<body>
<h1>jQCloud Example</h1>
<div id="my_favorite_latin_words" style="width: 550px; height: 350px; border: 1px solid #ccc;"></div>
</body>
</html>
使用jqcloud的afterCloudRender运行jquery后，jqcloud完成你的wordcloud
$('#example').jQCloud(words,{
shape : 'rectangle',
afterCloudRender : function(){
$('span','#example').each(function(){
alert($(this).text());
});
}
});
原因
hover处理器被绑定到span元素，这些元素在页面加载时还不存在。因此，处理程序没有绑定到动态添加的span元素。
$("#my_favorite_latin_words").on('mouseenter', 'span', function() {
alert('a');
});