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Example introduction to the difference between jquery's trigger and triggerHandler

巴扎黑Original: 2017-06-25 13:59:171084browse

This article mainly introduces the difference between jquery's trigger and triggerHandler. Friends in need can refer to

trigger and triggerHandler both simulate event. Use a specific case to describe the difference

The code is as follows:

<html lang="en"> 
<head> 
<meta charset="utf-8"> 
<title>test</title> 
<script src="http://code.jquery.com/jquery-1.10.2.js"></script> 
</head> 
<body> 
<input type="checkbox" /> 
<input type="text" id="test"/> 
<input type="button" value="button" id="bnt" 
onclick
="bntClick()"/> 
</body> 
<script> 
$( 
document
 ).ready(function() { 
$("input[type=&#39;checkbox&#39;]").bind("click",function(){ 
$("#test").val("www.baidu.com"); 
}); 
}); 
function bntClick(){ 
$("input[type=&#39;checkbox&#39;]").trigger("click"); 
} 
</script> 
</html>

When the checkbox is clicked, the checkbox is checked and input[type='text'] is assigned the value www.baidu. com
When input[type='button'] is clicked, the same thing as clicking checkbox will happen.
When the trigger is replaced with triggerHandler, when input[type='button'] is clicked, only input[type='text'] is assigned a value without checking the checkbox
triggerHandler prevents the default behavior of the element bound to the event

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