Javascript Programming Tutorials, Guides & Best Practices

• Encapsulate private data: Closures can help you create data that cannot be accessed directly from outside the function.
• Create factory functions: Closures can generate functions with specific behaviors or data preloaded.
• Maintain state across function calls: Closures allow you to maintain and manipulate the state of variables across multiple function calls.

To understand how closures work, let's start with a simple example: