instructions.txt

to start the development server :-
 1. cd <file-name>
 2. npm run dev 

To start working with react go to terminal and do:-
 1. first write a command like this - 
      npm create vite@latest
 2. write project name    and then select a framework(React)
 3. select plain javascript as a variant 

{} use this in html react code to write javascript code inside html code

To change Port number we can locate vite.config.js file in our folder and copy the below code ::-
// vite.config.js
import { defineConfig } from 'vite';

export default defineConfig({
  server: {
    port: 3001, // change to your desired port
  },
});


default code for vite.config.js
 import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [react()],
})


if you want to exit from a folder using terminal just use command 
 cd ..


&& is used for rendering elements if the statement is true , if false then returns null 
syntax:- 
 condition && condtion for true statement
 returns null for false