kick start with javascript

### JAVASCRIPT CODE FOR A 3D OBJECT .. ###
 
<!DOCTYPE html>

<html>

  <head>
    <meta charset="utf-8">

    <title>3D Cube Example</title>

  </head>
  <body>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
    <script src="your-script.js"></script>
  </body>
</html>

 
// Set up the scene, camera, and renderer 

const scene = new THREE.Scene();   
 
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);

const renderer = new THREE.WebGLRenderer();

renderer.setSize(window.innerWidth, window.innerHeight);

document.body.appendChild(renderer.domElement);

alert("it is a cube")     

// Create a cube   


const geometry = new THREE.BoxGeometry(); 

const material = new THREE.MeshBasicMaterial({ color: 0x00ff00 });
const cube = new THREE.Mesh(geometry, material);
scene.add(cube);    
prompt("give the shape of a cube")
  
   
// Position the camera 

camera.position.z = 5; 

// Create an animation loop
const animate = () => {

  requestAnimationFrame(animate);

  // Rotate the cube
  cube.rotation.x += 0.01;
  cube.rotation.y += 0.01;

  renderer.render(scene, camera);
};

// Start the animation
animate();