How Does `require()` Work in Node.js to Load and Manage Modules?

Exploring the "Require" in JavaScript and Node.js

In JavaScript and Node.js, the "require" keyword plays a pivotal role in loading modules. Modules are fundamental to organizing and splitting code into separate files, promoting code reusability and maintainability.

What is "Require"?

"require" is a built-in JavaScript function unique to Node.js. Its sole purpose is to load modules, which are self-contained independent units that provide specific functionality. In contrast to browser JavaScript, Node.js utilizes a module system that isolates each module's scope.

Usage in Node.js

In Node.js, "require" syntax is employed to load modules. For instance, the line var pg = require('pg'); loads the pg module, a PostgreSQL client for Node.js. After loading, the module can be accessed through the pg variable.

Module System Differences

Browser JavaScript and Node.js implement distinct module systems. Browser scripts have direct access to the global scope through

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