randomly changing color of tiles

 index.js------------------


import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';



ReactDOM.render(<App />, document.getElementById('msg'));




App.js------------------


import React, {Component} from 'react';
// import NoteTakingApp from './components/noteTakingApp';
// import NoteTakingApp from './components/noteTakingApp';
import QuessWhat from './components/guessWhat';
import './assets/StyleApp.css';

class App extends Component {
     render() {
          return(
               <div>
                    <QuessWhat />
               </div>
          );   
     }
}

export default App;


guessWhat.js-----------------



import React from 'react';

// import SingleTile from './tile';
import '../assets/StyleApp.css';

// class Pasting extends Component{
 
//      render(){

          
//           return(
               
//                <>
//                <div className='heading'>
//                     <div>
//                          <h1>Welcome! Guess What</h1>
//                     </div>
//                </div>
//                <div id="cards">
                    
//                     <div className="firstCard">
//                          <SingleTile  colorname="Red" isvalue ={true}/>
//                     </div>
//                     <div className="secondCard">
//                          <SingleTile colorname="Blue" isvalue ={true}/>
//                     </div>
//                     <div className="thirdCard">
//                          <SingleTile colorname="Green" isvalue ={false}/>
//                     </div>
//                     <div className="fourthCard">
//                          <SingleTile colorname="Yellow" isvalue ={true}/>
//                     </div>
                     
//                </div>
//                </>
               
                
//           );
//      }
// }
// export default Pasting;

function SingleTile(){
          const universalFunc=()=>{
          const red =  "#ff0000";
          const blue =  "#0000ff";
          const green =       "#6FFF00";
          const yellow =   "#ffff00";
          const pink =   "#ffc0cb";

          //generate random number
          const randomColorGenerated=()=>{
               var random = Math.floor(Math.random() * 4) + 1;
               //*4 means four numbers not multiplication.
               console.log(random);
               
               var newResult = pink;//initiallizing newResult

               if (random === 1) {
               console.log("first color");
               return newResult=yellow;
               } 
               if(random === 2){
               console.log("second color");
               return newResult=blue;
               }
               if(random === 3){
               console.log("third color");
               return newResult=red;
               }
               else {
               console.log("fourth color");
               return newResult=green;
               }
          }
          const getVal = randomColorGenerated();
          console.log("getval is "+ getVal);
          return getVal;
          }
          const finalVal = universalFunc();
          console.log("finalValue: "+finalVal);

          const element = document.getElementById("msg"); 
          element.style.background = finalVal;
          setInterval(universalFunc, 1000);


          return(
               <div>
                    <div >
                         <p>Hello user!, Note the color of tile. Color Name:</p>
                    </div>
                    <button type="reset" onClick={SingleTile}>change</button>
               </div>
               
          )
               
                    
}
export default SingleTile;

     
index.html-----------------------------


<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="theme-color" content="#000000" />
    <meta
      name="description"
      content="Web site created using create-react-app"
    />
    <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
    
    <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
    <link rel="stylesheet" type="text/css"href="./src/assets/StyleApp.css"> 
    <title>Profiler-Welcome</title>
    <script src="https://cdn.ckeditor.com/4.14.1/standard/ckeditor.js"></script>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="msg">
      <!-- <button id="heading" href="#">
        Hey, How's you doin?
    
      </button> -->
      <button type="reset">Change</button>
    </div>
    
    
  </body>
</html>

 


styleApp.css----------------------------


*{
     margin: 0px;
     padding: 0xp;
     /* padding-top: 20px; */
}
.tile{
     background: red;
     border: 4px solid black;
     height: 250px;
     width: 300px;
     margin: auto auto;
     border-radius: 8px;
     color: rgb(248, 209, 175);
      
      
     text-align: center;
     font-size: 2rem;
     font-family: Verdana, Geneva, Tahoma, sans-serif;
     
}
#cards{
     width: fit-content;
     height: fit-content;
     margin: auto;
}

.firstCard{
     background: orchid;
      
     
}

.firstCard p{
     font-family: 'Times New Roman', Times, serif;

}

.demo{
     background: darkmagenta;
}

.demo2{
     background: gray;
}

#msg {
     border: 4px solid black;
     height: 110px;
     width: 10%;
     font-size: 20px;
     margin: auto;
     padding: 50px;
     color: white;
     font-family: verdana;
     border-radius: 10px;
   }
   
#heading {
     text-align: center;
     /*   vertical-align: middle; */
   }





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