Why can't I run "Hello World" react app similar to simplest html, css and js project?

[vikramvi]

Dear All,

After learning HTML, CSS and JS; I’ve started learning React and I’ve got this very basic query for which I couldn’t answer

1. I could just 3 files in VSCode namely index.html, style.css and index.js, later load index.html in browser to see the results

2. Why can’t I do same thing with React Code ?
   For writing simplest hello world program; I had to run npx create-react-app helloworld & do changes.
   Later run command npm start

3. If I do any code change, I need to stop and again run npm start

Questions:

1. Why do I need to run npx create-react-app helloworld

2. How to see new changes without stopping and re-running npm start ?

Thanks,
Vikram

[miku86]

@vikramvi

Why can’t I do same thing with React Code ?
For writing simplest hello world program; I had to run npx create-react-app helloworld & do changes.
Later run command npm start

You don’t have to do this.

The ReactJS Docs will guide you:

Add React to an Existing Project – React

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@vikramvi

Why do I need to run npx create-react-app helloworld

Here you can read about the advantages of this:

Start a New React Project – React

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@vikramvi

How to see new changes without stopping and re-running npm start ?

Normally, you don’t have to re-run npm start.

[vikramvi]

Thanks for info, let me re-try steps you have mentioned