JavaScript DHTML/jQuery/find
Содержание
Change the font weight and color of all Italic text
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<style type="text/css">
a.test { font-weight: bold; color:red;}
</style>
<script type="text/javascript">
$(document).ready(function(){
$("input.buttonA").click(function(){ $("div.contentToChange").find("em").css({color:"#993300", fontWeight:"bold"}); });
});
</script>
</head>
<body>
<input type="button" value="Change" class="buttonA" />
<div style="background:#eee;" class="contentToChange">
<h2>Header 2</h2>
<p class="firstparagraph">Lorem ipsum <em>dolor</em> sit amet, consectetuer <em>adipiscing</em> elit, sed diam nonummy nibh euismod <em>tincidunt</em> ut laoreet dolore magna aliquam erat <strong>volutpat</strong>. Ut wisi enim ad minim <em>veniam</em>, quis nostrud exerci <strong>tation</strong> ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p>
<p class="fifthparagraph">Lorem ipsum <em>dolor</em> sit amet, consectetuer <em>adipiscing</em> elit, sed diam nonummy nibh euismod <em>tincidunt</em> ut laoreet dolore magna aliquam erat <strong>volutpat</strong>. Ut wisi enim ad minim <em>veniam</em>, quis nostrud exerci <strong>tation</strong> ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p>
</div>
</body>
</html>
Find all children with a class "selected" of each div.
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("div").children(".selected").css("color", "blue");
});
</script>
</head>
<body>
<body>
<div id="container">
<div class="selected">And Again</div>
<div>
asdf
</div>
</div>
</body>
</html>
find(expr): searching is done using a jQuery expression
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p").find("span").css("color","red");
});
</script>
</head>
<body>
<body>
<p>bad or <span>good</span>.</p>
</body>
</html>
Find tag in another tag
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("p").find("span").css("color","red");
});
</script>
</head>
<body>
<body>
<p><span>Hello</span></p>
</body>
</html>