What are the differences between module patterns and closures in JavaScript?

What are the differences between module patterns and closures in JavaScript?

Module patterns and closures are both ways to encapsulate code in JavaScript. Closures allow functions to access variables from an outer function's scope, while module patterns provide a way to create private and public members in an object.

Can you give me an example of each?

Sure! A closure example is a function that returns another function, capturing its scope. A module pattern example is an IIFE (Immediately Invoked Function Expression) that returns an object with public methods.

When should I use one over the other?

Use closures when you need to maintain state or create private variables. Use module patterns when you want to organize code into reusable components.

Are there any performance differences between them?

Generally, module patterns can be more efficient for larger applications due to better organization, while closures can lead to memory issues if not managed properly.