---
title: "Discussion on \"How hook useCallback works?\" | Hashnode"
description: "Discussion on \"How hook useCallback works?\". What is useCallback in React JS?\nUseCallback is a native React JS hook that memorizes functions, preventing them from being recreated every time a component is rendered, unless there's a change in the dependency list.\nLet's explain with simple exampl..."
url: "https://hashnode.com/posts/how-hook-usecallback-works/689ca5bab894c1236bef8d4e"
---

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# [How hook useCallback works?](https://reactnoobtomaster.hashnode.dev/how-hook-usecallback-works?utm_source=hashnode&utm_medium=feed)

What is useCallback in React JS? UseCallback is a native React JS hook that memorizes functions, preventing them from being recreated every time a component is rendered, unless there's a change in the dependency list. Let's explain with simple exampl...

Aug 13, 2025 · 2 min read · reactnoobtomaster.hashnode.dev  
Updated Oct 1, 2025  
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-   [#reactjs](https://hashnode.com/tag/reactjs)
-   [#usecallback](https://hashnode.com/tag/usecallback)

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[Jonatas Artagnan](https://hashnode.com/@jonatasArtagnan)

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