Event Emitters vs Callbacks: What's the Difference?

Can you explain the difference between event emitters and callbacks?

Sure! Event emitters are objects that emit events, allowing multiple listeners to respond to those events. Callbacks, on the other hand, are functions passed as arguments to other functions, executed after a certain task is completed.

When should I use event emitters instead of callbacks?

Use event emitters when you need to handle multiple events or listeners, while callbacks are better for single, direct responses.

Can you give me an example of each?

Absolutely! For a callback, consider a function that reads a file and takes a callback to handle the result. For an event emitter, think of a button that emits a 'click' event, which can be listened to by multiple functions.

Are there any performance differences between the two?

Yes, event emitters can be more efficient for handling multiple events, but callbacks can be simpler for straightforward tasks. It depends on your use case!