### 返回值: Stringevent.namespace
### *V1.4.3*概述
当事件被触发时此属性包含指定的命名空间。
### 示例
#### 描述:
确定事件在命名空间中使用。
##### 代码:``
~~~
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
</head>
<body>
<button>display event.namespace</button>
<p></p>
<script>
$("p").bind("test.something", function(event) {
alert( event.namespace ); });
$("button").click(function(event) {
$("p").trigger("test.something");
});
</script>
</body>
</html>
~~~
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