javascript - Why use message queue with Node js?

Question

I am reading about when to use node, and I see that an advantage of the non-blocking nature of node is that it doesn't block the rest of the code and the other requests with I/O operations that take some time, and I understand this happens by sending these operations to the event loop.

My question is why do I need to use another message queue service that would do the same functionality of the event loop?

The part I'm confused with is "Queued Input" section here : Why the hell would I use Node JS

question from:https://stackoverflow.com/questions/65651678/why-use-message-queue-with-node-js

Answer 1

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