Viktor19931

(function ScrollPolyfill() {

  // The asynchronous tester

  // wrapped in an iframe (will not work in SO's StackSnippet®)
  var iframe = document.createElement('iframe');
  iframe.onload = function() {
    var win = iframe.contentWindow;
    // listen for a scroll event
    win.addEventListener('scroll', function handler(e){

Viktor19931

open -a Google\ Chrome --args --disable-web-security --user-data-dir

Viktor19931

const mergeArray = (arr1, arr2) => {
	let arr = [...arr1, ...arr2]	
	
	const uniqueArr = arr
    .map(e => e.id)
    .map((e, i, keysArr) => keysArr.indexOf(e) === i && i)
		.filter(e => arr[e]).map(e => arr[e]);

   return uniqueArr;