steam-wishlist-app-ids.js

// paste this snippet on to a javascript console with the steam wishlist page open to dump all app ids

let app_set = new Set();

function getAppId(mutationList, observer) {
	mutationList.forEach((mutation) => {
		if (mutation.addedNodes && mutation.addedNodes[0]) app_set.add(mutation.addedNodes[0].dataset.appId);
		if (mutation.removedNodes && mutation.removedNodes[0]) app_set.add(mutation.removedNodes[0].dataset.appId);
  	});
}

let m = new MutationObserver(getAppId);
m.observe(document.getElementById('wishlist_ctn'), { childList: true });

let last = -1;
function autoscroll(element, goal) {
    	let max = goal || element.offsetHeight;
        if (element.scrollTop >= max || element.scrollTop == last) return;

        last = element.scrollTop;
        element.scrollTop += 100;
        
        timeout = setTimeout(() => {
        	autoscroll(element, goal);
        }, 10);
    }

let max = parseInt(document.querySelector('#wishlist_ctn').style.height);
autoscroll(document.documentElement, max);