Javascript’s Slightly Stricter Mode

“use strict”;

You might have seen someone else type in this magical incantation at the top of a file. Maybe you’ve seen it in an open-source library. Maybe you first used it when Yeoman generated it for you (hint: I did). In this short, sharp session, we’ll cover what Strict Mode really is, when to use it, why you probably want to, and how to do so safely.