how to create a class in visual studio

class sample{

 constructor(x,y,width,height){
  
  this.body= Bodies.rectangle(x,y,width,height)
  
  this.width= Width;
  
  this.height= Height 
 
 
 }
 
display(){
var position= this.body.position

rect(position.x,position.y,width,height);

}