---
title: "Discussion on \"Understanding React ⚛ - ep.1\" | Hashnode"
description: "Discussion on \"Understanding React ⚛ - ep.1\". tldr; it's costly to define components inside other components"
url: "https://hashnode.com/posts/understanding-react-ep1/6328a28f195e7dc741da6153"
---

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# [Understanding React ⚛ - ep.1](https://blog.reilly.dev/understanding-react-ep1?utm_source=hashnode&utm_medium=feed)

tldr; it's costly to define components inside other components

Sep 19, 2022 · 6 min read · blog.reilly.dev  
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-   [#reactjs](https://hashnode.com/tag/reactjs)

## Written by

[Reilly O'Donnell](https://hashnode.com/@Reilly)

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Senior Frontend Engineer - Sharing everything I know about React, React Native, TS, and building fast, scalable apps

If you've got any questions feel free to DM on Twitter @reillyjodonnell

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