携带特性选择器 [name]

attributeHas selector

描述:选择具有指定特性的元素,特性值任意。

  • 增补版本:1.0jQuery( "[attribute]" )

    attribute: 一个特性名。

示例:

把一个单击绑定到带有id的div上,把其id添加到div的文本中。

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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>attributeHas demo</title>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<div>no id</div>
<div id="hey">with id</div>
<div id="there">has an id</div>
<div>nope</div>
<script>
// Using .one() so the handler is executed at most once
// per element per event type
$( "div[id]" ).one( "click", function() {
var idString = $( this ).text() + " = " + $( this ).attr( "id" );
$( this ).text( idString );
});
</script>
</body>
</html>

演示: