How do I create a module in Node.js?

How do I create a module in Node.js?

To create a module in Node.js, you can use the module.exports object to export functions or variables.

Can you give me an example of a simple module?

Sure! Here's a simple example:

// myModule.js
const greet = (name) => `Hello, ${name}!`;
module.exports = greet;

You can then import it in another file using require.

How do I import this module in another file?

You can import it like this:

// app.js
const greet = require('./myModule');
console.log(greet('World')); // Output: Hello, World!

What if I want to export multiple functions?

You can export multiple functions by adding them to an object:

// myModule.js
const greet = (name) => `Hello, ${name}!`;
const farewell = (name) => `Goodbye, ${name}!`;
module.exports = { greet, farewell };