JSFiddle - React, Tailwind, and code Playground

HTML

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JavaScript

function checkScrollBar() {
  var hContent = $(document).height(); // get the height of your content
  var hWindow = $(window).height(); // get the height of the visitor's browser window

  if(hContent > hWindow) { 
    return "yes";    
  } else return "NO";
}


alert(checkScrollBar());