Node.js Event Emitter vs Promises

Can you explain the difference between Event Emitters and Promises in Node.js?

Sure! Event Emitters are used for handling asynchronous events, while Promises represent a value that may be available now, or in the future, or never.

When should I use Event Emitters instead of Promises?

Use Event Emitters when you need to handle multiple events over time, like in a real-time application. Promises are better for single asynchronous operations.

Can you give an example of when to use each?

Absolutely! Use Promises for tasks like fetching data from an API. Use Event Emitters for scenarios like user interactions or streaming data.

Are there any performance differences between the two?

Yes, Event Emitters can be more efficient for handling many events, while Promises can introduce overhead for single operations due to their state management.