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jquery select select drop-down menu option item trigger event

高洛峰

Dec 15, 2016 pm 04:14 PM

The select drop-down menu option item triggered by jquery implements an event:
In many applications, selecting a select drop-down option will trigger an event and perform the corresponding operation.
The following is a code example to introduce how to use jquery to implement this function. The code is as follows:

<!DOCTYPE html><html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.softwhy.com/" />
<title>蚂蚁部落</title>
<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript"> 
$(document).ready(function () { 
  $("#sel").bind("change",function(){ 
    if($(this).val()==0){
      return; 
    } 
    else{
      $("#thediv").text($(this).val());
    } 
  }); 
});
</script> 
</head> 
<body>
<div id="thediv"></div>
<select id="sel">
  <option value="0">-请选择-</option> 
  <option value="1">蚂蚁部落一</option> 
  <option value="2">蚂蚁部落二</option> 
  <option value="3">蚂蚁部落三</option> 
  <option value="4">蚂蚁部落四</option> 
</select>
</body>
</html>

Copy after login

The above code selects all options except the first item and writes the value into the div.

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