## IIFE

* Immediately-invoked function expressions.

* A design pattern used by most popular libraries to place all library code inside of a local scope.

* No global property is created for the function (anonymous function expression).

* All of the properties created inside of the function expression are scoped locally.

* Encapsulation, preserve the global namespace as any variables declared within the function body will be local to the closure but will still live throughout runtime.

* Benefits:

* Local scoping.