Detailed explanation of jQuery unbind() method example_jquery

The example in this article describes how to use the jQuery unbind() method. Share it with everyone for your reference, the details are as follows:

The unbind() method in jQuery is the reverse operation of the bind() method and removes the bound event from each matching element.

Grammar structure:

Copy code The code is as follows:

unbind([type][, data]);

type is the event type, data is the event to be removed. The specific instructions are as follows:
1. If there are no parameters, delete all binding events;
2. If the event type (type) is provided as a parameter, only the bound events of this type will be deleted;
3. If the handler function passed during binding is used as the second parameter, only this specific event handler function will be deleted.

Please see the example below:

<script src="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 />
<div class="info"></div>
<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:

Readers who are interested in more content related to jQuery events can check out this site's special topic: "Summary of jQuery common event usage and techniques"

I hope this article will be helpful to everyone in jQuery programming.