JavaScript can be a passive-aggressive and fickle language that frustrates you at every turn. It lets you do things like declare variables anywhere, but doesn’t tell you that it will hoist them while you’re not looking. JavaScript’s 'this' keyword is anything but, and eval can turn good code to evil fast. In this session, we will discuss common JavaScript headaches and mistakes and fun ways to avoid them. Learn what can trick you, like JavaScript scoping, or the ever elusive data types, and how JS organizes data and functions. Or that there is an actual ES6 'class' keyword, and you can write OOP systems in JavaScript!