Hello i need help

I want to host the node.js code, but I want it to run 24 hours and never be interrupted. Is this available in Replicate Core or not?

Replit now uses Deployments.

You can see which deployment is more suitable for your needs in their pricing page.
https://replit.com/pricing

The replit core includes this: https://docs.replit.com/power-ups/replit-core