The **`export` statement** is used in [Javascript](https://www.educative.io/answers/javascript-style-guide) modules to export functions, objects, or primitive values from one module so that they can be used in other programs (using the 'import' statement).

> A **module** encapsulates related code into a single unit of code. All functions related to a single module are contained in a file. 

**Module exports** are the instructions that tell [Node.js](https://www.educative.io/blog/what-is-nodejs) which bits of code (functions, objects, strings, etc.) to `export` from a given file so that other files are allowed to access the exported code.




# Syntax
The following code exposes a function to be exported in the file `Log.js`.
```node.js
module.exports = function (msg) { 
    console.log(msg);
};
```
We can now use the above module as shown below.
```node.js
var msg = require('./Log.js');

msg('Hello World');
```

# Code
The following code declares and exports a list (`myNumbers`) and a function (`myLogger()`) in the file `modules.js`. We then import these modules into our main file (`index.js`), which allows us to call these functions there.


export const myNumbers = [1, 2, 3, 4];
const animals = ['Panda', 'Bear', 'Eagle']; // Not available directly outside the module

export function myLogger() {
  console.log(myNumbers, animals);
}

const functions = require('./modules');
let { myLogger, myNumbers } = functions

console.log("Calling myLogger function:")
myLogger();
console.log("\n Printing myNumbers list:")
console.log(myNumbers);

What are module exports in JavaScript?

The export statement is used in Javascript modules to export functions, objects, or primitive values from one module so that they can be used in other programs (using the  import  statement).  A module encapsulates related code into a single unit of code. All functions related to a single module are contained in a file.  Module exports are the instructions that tell Node.js which bits of code (functions, objects, strings, etc.) to export from a given file so that other files are allowed to access the exported code. 