How does the module pattern compare to other patterns?

Can you explain the module pattern and how it compares to other design patterns?

The module pattern is a design pattern used in JavaScript to encapsulate private variables and functions. It helps in organizing code and avoiding global scope pollution. Compared to other patterns like the singleton or factory patterns, the module pattern focuses on creating a single instance of a module with a public API.

What are the advantages of using the module pattern?

The module pattern provides several advantages, including better code organization, encapsulation of private data, and a clear public interface. It also helps in maintaining a clean global scope and can improve code reusability.

How does it differ from the singleton pattern?

While both patterns aim to control access to resources, the singleton pattern restricts a class to a single instance, whereas the module pattern creates a module with a public API that can contain multiple instances or functions. The module pattern is more about encapsulation and organization.

Can you give an example of the module pattern in JavaScript?

Sure! Here's a simple example:

const myModule = (function() {
    let privateVar = 'I am private';
    return {
        publicMethod: function() {
            console.log(privateVar);
        }
    };
})();

myModule.publicMethod(); // Outputs: I am private