Now consider what happens if the inner function has a variable that references it that isn't local to the outer function. In this case the inner function can actually live longer than the outer ...

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table of the ...

When you first meet it closure seems like the craziest of ideas. However once you realize that JavaScript functions are objects and what this implies then it seems like a natural consequence. Most ...