NodeJs — Modules and require()

Node.js uses modules to organize code. You can use built-in modules like 'fs', 'path', and 'http', or create your own custom modules. The require() function is used to import modules into your application.

// customModule.js
module.exports = {
  greet: function() {
    return 'Hello from custom module!';
  }
};

// app.js
const custom = require('./customModule');
console.log(custom.greet());