jQuery 는 요소 가 숨겨 진 코드 인지 판단 합 니 다.
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if($("#elem_id").is(":hidden"))
{
}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script type="text/javascript" src="jquery-1.4.2.js">
<!--
//-->
</script>
<script type="text/javascript">
<!--
$(document).ready(function(){
$("#btnToogle").click(function(){
$("#dvTest").toggle();
alert( $("#dvTest").is(":visible")); //
});
$("#btnTestIs").click(function(e){
// alert( $(e.target).is("input") ); //
alert( $("#btnToogle").parent().is("body") );
});
});
//-->
</script>
</head>
<body>
<input type="button" value="toogle div" id="btnToogle">
<div style="width:50px; height:100px; border:solid 1px red; background-color:blue;" id="dvTest">
</div>
<br />
<hr />
<input type="button" value="toogle div" id="btnTestIs">
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title> </title>
<script src="jquery-1.3.2.js"></script>
<script>
$(document).ready(function(){
var temp= $("#test").is(":hidden");//
var temp1= $("#test").is(":visible");//
alert(temp) ;
alert(temp1) ;
}); </script>
</head>
<body>
<p onclick='test()'> </p>
<div id="test" style="display:none"></div>
</body>
</html>
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