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Esimit Karlgusta
Esimit Karlgusta

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React Components Explained: A Beginner’s Guide

Recently, I decided to go through the official React documentation to just understand it in-depth.

I found it interesting and got a few things to share.

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So, What is React?

React is a JavaScript library for building user interfaces (UIs).

It enables you to

  • create and nest components
  • add markup and styles
  • display data
  • render conditions and lists
  • respond to events and update the screen
  • share data between components

Today, we are going to look at creating components.

Creating Components

In React, 90% of the time, you will be interacting with components.

A component is a piece of the UI(user interface) that has its own logic and appearance.

Logic and appearance. Two points worth noting down.

A component can be as small as a button, or as large as an entire page.

Here is an example of a component:

function MyButton(){
  return (
    <button>I'm a button</button>
  );
}
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React component names must always start with a capital letter, while HTML tags must be lowercase.

That is all I wanted to share today.

As always, I'll leave you with my favorite quote from Naval that says:

"Coding is a superpower because you can speak the language of robots and command them to do whatever you like."

Happy Coding!

Further Reading:

  1. Google. Gemini, August 18, 2025. https://gemini.google.com/app
  2. ReactDev. (2025). React Quick Start. https://react.dev/learn

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