Module Design Pattern is a way to encapsulate and organize code in a self-containing module that can expose certain functionalities.

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A Quick Module Design Pattern is a way to encapsulate and organize code in a self-containing module that can expose certain functionalities while keeping the rest of the code private. This helps prevent variable and function name clashes, improves code maintainability, and promotes the concept of separation of concerns.

A Quick Module Design Pattern Example in JavaScript

The author stuck in ES5 era :) This happens when developers stop updating their knowledge for years.
Advice: Learn ES6 modules (supported in all browsers since ~2018)

This used to be a very useful pattern, until modules came in.
Are there any viable use cases left for this pattern? (that es modules and classes can’t cover yet)