It’s never been more important for your web page to maintain a silky-smooth 60 frames per second. That means there’s only 16 milliseconds for Javascript to execute between each frame. We’ll learn several techniques for improving UI performance by stopping Javascript from blocking UI updates.

It is not uncommon for people to think of the command line as an ancient, impenetrable and impossible interface to get any real work done. Even if you are a veteran vim user, the thought of actually creating anything other than a single line, argument based interface will probably seem like something out of reach […]