milankragujevic

var els = document.getElementsByClassName('pl-video');

for(i = 0; i < els.length; i++) {
	var el = els[i];
	if(el) {
		var src = el.getElementsByClassName('yt-thumb-clip')[0].getElementsByTagName('img')[0].src;
		if(!src.match(/\.com\/vi\//g)) { continue; }
		var id = src.split('.com/vi/')[1].split('/')[0];
		console.log(id);
	}

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?