jQuery triggerHandler()

Introduction

Trigger the select event of an <input> element:

<!DOCTYPE html>
<html>
<head>
<script 
 src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js">
</script>//from  w  w  w .  j  a  v a 2  s  . c om
<script>
$(document).ready(function(){
  $("input").select(function(){
    $("input").after(" Select event triggered!");
  });
  $("button").click(function(){
    $("input").triggerHandler("select");
  });
});
</script>
</head>
<body>

<input type="text" value="Hello World"><br><br>
<button>Trigger the select event for the input field</button>
</body>
</html>

The triggerHandler() method triggers the specified event.

The trigger() method also triggers the default behavior of an event.

While the triggerHandler() method only trigger the handler.

$(selector).triggerHandler(event,param1,param2,...)

Parameter	Optional	Description
event	Required.	the event to trigger for the specified element
param1,param2,...	Optional.	Additional parameters to pass on to the event handler.

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