How to find which JS triggers page scroll?

On my site, whenever I clicked the checkbox that time ajax request called and scrolled a page. I was looking to find which javascript triggers the scroll action. I used the below method to find the js which triggers scroll.

Firstly, I loaded the page and placed the below javascript in the chrome developer console.

window.onscroll = function() {console.trace()};

Then I clicked the checkbox and it provides a list of js call trace in developer console.

Then I easily figured out the js which triggers scroll.

I hope it helps. Thanks.

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