Dump YouTube playlist data from console to JSON

youtube-pl-dump.js

dump = () => {
	const dump = Array.from(document.querySelectorAll('ytd-playlist-video-list-renderer ytd-playlist-video-renderer')).map(item => {
		return {
			id: item.querySelector('a').href.match(/v=([^&]+)&/)[1], 
			title: item.querySelector('h3')?.textContent?.trim() || null, 
			thumb: item.querySelector('ytd-thumbnail img')?.src || null, 
			by: item.querySelector('ytd-channel-name #text-container')?.textContent?.trim() || null,
			length: item.querySelector('.ytd-thumbnail-overlay-time-status-renderer:not([hidden])')?.textContent?.trim() || null
		};
	});
	const url = URL.createObjectURL(new Blob([JSON.stringify(dump)], { type: "application/json" }));
	window.open(url);
	console.log("Dumped", dump.length, "videos with", dump.filter(d => d.thumb != null && d.thumb != "").length, "thumbs");
	console.log(dump);
	console.log(url);
};
scrollLast = window.scrollY;
scroll = setInterval(() => window.scrollBy(0, 300), 50);
scrollEnd = setInterval(() => {
	if (Math.abs(window.scrollY - window.scrollMaxY) < 1.1 && Math.abs(window.scrollY - scrollLast) < 1.1) {
		clearInterval(scroll);
		clearInterval(scrollEnd);
		dump();
	} else {
		console.log("Still scrolling...", document.querySelectorAll('ytd-playlist-video-list-renderer ytd-playlist-video-renderer').length);
	}
	scrollLast = window.scrollY;
}, 8000);