The Module Pattern

The module pattern is a design pattern that allows you to encapsulate code within a self-contained module, providing a way to organize and structure your code.

Example

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

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

CounterModule.increment(); // Output: 1
CounterModule.reset();     // Output: Counter reset

Explanation: The CounterModule encapsulates the count variable, exposing only the increment and reset methods. This pattern helps to avoid global variables and keep code modular.

Application: The module pattern is essential for managing larger codebases, improving maintainability, and preventing naming conflicts.