What are the differences between default and named exports in JavaScript?

What are the differences between default and named exports in JavaScript?

In JavaScript, default exports allow you to export a single value or object from a module, while named exports let you export multiple values. You can import default exports without curly braces, but named exports require them.

Can you give me an example of each?

Sure! For a default export, you might have: export default function myFunction() {}. For named exports, it would look like: export const myVar = 42;.

What happens if I try to import a default export as a named export?

If you try to import a default export as a named export, you'll get an error. Default exports must be imported without curly braces.

Are there any performance differences between the two?

Generally, there are no significant performance differences. The choice between them is more about code organization and clarity.