---
title: "What is the purpose of the export keyword JavaScript?"  
description: "What is the purpose of the export keyword JavaScript?"  
author: "Revati S Misra"  
published: 2023-11-01  
updated: 2023-11-02  
canonical: https://www.mindstick.com/forum/160358/what-is-the-purpose-of-the-export-keyword-javascript  
category: "javascript"  
tags: ["javascript", "keywords", "module"]  
reading_time: 3 minutes  

---

# What is the purpose of the export keyword JavaScript?

What is the [purpose](https://yourviews.mindstick.com/view/247/no-fail-policy-failing-its-purpose) of the [export](https://www.mindstick.com/articles/12966/a-guide-to-export-pallets) [keyword](https://www.mindstick.com/forum/33572/sql-inner-join-keyword) [JavaScript](https://www.mindstick.com/articles/874/how-to-create-watermark-text-for-textbox-by-using-javascript)?

## Replies

### Reply by Aryan Kumar

The **export** keyword in JavaScript is used to make functions, variables, or objects available for use in other modules. It plays a pivotal role in modular code organization and encapsulation, allowing you to define what parts of a module can be accessed from outside that module. Here are the primary purposes of the **export** keyword:

**Sharing Functionality:** The **export** keyword enables you to share functions, variables, classes, or objects from one module with other modules. This promotes code reuse and modularity in your applications.

**Module Encapsulation:** By using **export**, you can define which parts of a module are considered the module's public API and are meant to be used by other modules. This encapsulation ensures that the internal implementation details of a module remain hidden from external code.

**Named Exports:** You can use the **export** keyword to create named exports, which allow you to specify the names of the elements that you want to expose from a module. This makes it clear and explicit which parts of the module are accessible.

Example:

```plaintext
// Exporting named variables and functions
export const variable1 = 'value1';
export function func1() { /* ... */ }
```

**Default Exports:** The **export** keyword is also used to create a default export from a module. A default export is a single entity that represents the primary functionality of the module. It's often used for exporting the main feature or class from a module.

Example:

```plaintext
// Exporting a default function
export default function() { /* ... */ }
```

**Export All:** You can use the **export * from 'module'** syntax to export all the named exports from another module. This allows you to re-export everything from one module in another module.

Example:

```plaintext
export * from './anotherModule';
```

**Combining Exports:** Modules can have both named exports and a default export. This allows you to export a set of related functionality using named exports and a primary piece of functionality using a default export.

Example:

```plaintext
// Named exports
export const variable1 = 'value1';
export function func1() { /* ... */ }
// Default export
export default function() { /* ... */ }
```

The **export** keyword is essential for creating modular and maintainable JavaScript code. It defines what is exposed to the outside world and what remains private within a module. This promotes better code organization, code sharing, and the separation of concerns in your applications.


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