Adding onClick event dynamically using jQuery

Question

You can use the click event and call your function or move your logic into the handler:

$("#bfCaptchaEntry").click(function(){ myFunction(); });

You can use the click event and set your function as the handler:

$("#bfCaptchaEntry").click(myFunction);

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.click()

Bind an event handler to the "click" JavaScript event, or trigger that event on an element.

http://api.jquery.com/click/

---

You can use the on event bound to "click" and call your function or move your logic into the handler:

$("#bfCaptchaEntry").on("click", function(){ myFunction(); });

You can use the on event bound to "click" and set your function as the handler:

$("#bfCaptchaEntry").on("click", myFunction);

---

.on()

Attach an event handler function for one or more events to the selected elements.

http://api.jquery.com/on/

try this approach if you know your object client name ( it is not important that it is Button or TextBox )

$('#ButtonName').removeAttr('onclick');
$('#ButtonName').attr('onClick', 'FunctionName(this);');

try this ones if you want add onClick event to a server object with JQuery

$('#' + '<%= ButtonName.ClientID %>').removeAttr('onclick');
$('#' + '<%= ButtonName.ClientID %>').attr('onClick', 'FunctionName(this);');

Try below approach,

$('#bfCaptchaEntry').on('click', myfunction);

or in case jQuery is not an absolute necessaity then try below,

document.getElementById('bfCaptchaEntry').onclick = myfunction;

However the above method has few drawbacks as it set onclick as a property rather than being registered as handler...

Read more on this post https://stackoverflow.com/a/6348597/297641

$("#bfCaptchaEntry").click(function(){
    myFunction();
});

Or you can use an arrow function to define it:

$(document).ready(() => {
  $('#bfCaptchaEntry').click(()=>{
    
  });
});

For better browser support:

$(document).ready(function() {
  $('#bfCaptchaEntry').click(function (){
    
  });
});

let a = $("<a>bfCaptchaEntry</a>");
a.attr("onClick", "function(" + someParameter+ ")");