jQuery triggerHandler() Method Last Updated : 18 Nov, 2022 Comments Improve Suggest changes Like Article Like Report The jQuery triggerHandler() Method is used to trigger a specified event for the selected element. Syntax: $(selector).triggerHandler(event, param1, param2, ...) Parameters: This method accepts two parameters as mentioned above and described below: event: It is an mandatory parameter which is used to specify the event to trigger for the specified element.param1, param2, ... : These are an optional parameters which are used to pass on the event handler and these are especially useful with custom event. Example 1: This example triggered the input select element. HTML <!DOCTYPE html> <html> <head> <title> jQuery | triggerHandler() Method </title> <script src= "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <h2>jQuery | triggerHandler() Method</h2> <input type="text" value="HELLO GEEKS"> <br><br> <button>Click</button> <!-- Script to trigger event --> <script> $(document).ready(function () { $("input").select(function () { $("input").after(" TRIGGERED!"); }); $("button").click(function () { $("input").triggerHandler("select"); }); }); </script> </body> </html> Output: Example 2: This example trigger the paragraph event and display the alert message. HTML <!DOCTYPE html> <html> <head> <title> jQuery | triggerHandler() Method </title> <script src= "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> </script> </head> <body style="text-align:center;"> <h1 style="color:green;"> GeeksForGeeks </h1> <h2>jQuery | triggerHandler() Method</h2> <button>Click</button> <!-- Script to trigger events --> <script> $(document).ready(function () { $("button").click(function () { $("button").on("myPara", function (event, param1, param2, param3) { alert(param1 + "\n" + param2 + "\n" + param3); }); $("button").triggerHandler("myPara", ['GEEKS', 'FOR', 'GEEKS']); }); }); </script> </body> </html> Output: Comment More infoAdvertise with us S SHUBHAMSINGH10 Follow Improve Article Tags : Web Technologies JQuery jQuery-Events jQuery-Methods Similar Reads jQuery bind() Method The jQuery bind() method is used to attach one or more event handlers for selected elements. 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