Can you give an example of module patterns?

Can you give me an example of module patterns in JavaScript?

Sure! The module pattern is a design pattern that helps in encapsulating private variables and methods. Here's a simple example:

const Module = (function() {
    let privateVar = 'I am private';

    function privateMethod() {
        console.log(privateVar);
    }

    return {
        publicMethod: function() {
            privateMethod();
        }
    };
})();

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

How does this help in organizing code?

It helps by keeping certain variables and methods private, reducing global scope pollution and preventing unintended interactions between different parts of your code.

Can you show me a more complex example?

Absolutely! Here's a more complex example that includes multiple public methods:

const CounterModule = (function() {
    let count = 0;

    return {
        increment: function() {
            count++;
            console.log(count);
        },
        decrement: function() {
            count--;
            console.log(count);
        },
        reset: function() {
            count = 0;
            console.log(count);
        }
    };
})();

CounterModule.increment(); // Outputs: 1
CounterModule.increment(); // Outputs: 2
CounterModule.decrement(); // Outputs: 1
CounterModule.reset(); // Outputs: 0

What are the advantages of using module patterns?

The advantages include better organization of code, encapsulation of private data, and prevention of naming conflicts in the global scope.