---
title: "#mapref articles | Hashnode"
description: "Explore 1 articles tagged #mapref on Hashnode. Tutorials, guides, and how-tos from the community."
url: "https://hashnode.com/tag/mapref"
---

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# #mapref

1 posts · 0 followers

[Luis Rodero-Merino](https://hashnode.com/@gondolindrim) · [Mar 10, 2024](https://hashnode.com/posts/using-cats-effects-mapref/65edacc5d921f61499fc5bed)

### [Using Cats Effect's MapRef](https://lrodero.hashnode.dev/using-cats-effects-mapref?utm_source=hashnode&utm_medium=feed)

(all code samples can be run using scala-cli) If you use Cats Effect (CE) it is likely you have found that you need a Map instance that has to be fiber-safe as several fibers can access it concurrently. MapRef is a type offered by CE std package that...

2 min read · [lrodero.hashnode.dev](https://lrodero.hashnode.dev/using-cats-effects-mapref?utm_source=hashnode&utm_medium=feed)