The unbind() method in jQuery is the reverse operation of the bind() method, removing the bound event from each matching element.
Syntax structure:
unbind([type][, data]);
type is the event type, and data is the event to be removed. The specific instructions are as follows:
1. If there are no parameters, all binding events will be deleted;
2. If the event type (type) is provided as a parameter, only the bindings of this type will be deleted. Certain events;
3. If the processing function passed when binding is used as the second parameter, only this specific event processing function will be deleted.
Please see the example below:
<script src="http://www.gamejzy.com/js/jquery.js" type="text/javascript"></script>
<style>
.info {
background:#ffff66;
}
</style>
<input type="button" id="btn" value="点击我" /> <input type="button" id="delAll" value="删除全部绑定函数" /> <input type="button" id="delFun2" value="删除第二个绑定函数" /><br />
<p class="info"></p>
<script type="text/javascript">
$(document).ready(function(){
// 为id为btn的按钮添加绑定事件
$("#btn").bind('click', fun1=function(){
$(".info").append('<p>绑定函数1</p>');
}).bind('click', fun2=function(){
$(".info").append('<p>绑定函数2</p>');
}).bind('click', fun3=function(){
$(".info").append('<p>绑定函数3</p>');
})
$("#delAll").bind('click', function(){
$("#btn").unbind(); //删除全部绑定事件
})
$("#delFun2").bind('click', function(){
$("#btn").unbind('click', fun2); //删除第二个绑定函数
})
})
</script>
Effect display:
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