---
title: "Discussion on \"React Fundamentals: Components, JSX, State, and Re-rendering\" | Hashnode"
description: "Discussion on \"React Fundamentals: Components, JSX, State, and Re-rendering\". Why React Exists\nWhy did developers create React when JavaScript and the DOM already existed?\nIn traditional web development, you write vanilla JavaScript to imperatively find, modify, and update HTML"
url: "https://hashnode.com/posts/react-fundamentals-components-jsx-state-and-re-rendering/6a89d1ff58573a55a27298c8"
---

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# [React Fundamentals: Components, JSX, State, and Re-rendering](https://swapnadip-syntexandstory.hashnode.dev/react-fundamentals-components-jsx-state-and-re-rendering?utm_source=hashnode&utm_medium=feed)

Why React Exists Why did developers create React when JavaScript and the DOM already existed? In traditional web development, you write vanilla JavaScript to imperatively find, modify, and update HTML

Aug 22 · 5 min read · swapnadip-syntexandstory.hashnode.dev  
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## Written by

[Swapnadip Sahoo](https://hashnode.com/@swapnadip23)

@swapnadip23 · Pnaskura, India

  
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