JSFiddle - React, Tailwind, and code Playground

JavaScript

function doALoadOfStuff(){
   var windowSize = window.innerWidth
      || document.documentElement.clientWidth
      || document.body.clientWidth;
   if(windowSize > 768) {
      console.log(windowSize);
   }
}

window.onresize = doALoadOfStuff;

var handler = window.onresize;
//handler();
//or
handler.apply();