how to draw barchart in javascript code example

Example: how to make bar chart in javascript

var b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11;

function setup() {
  createCanvas(400, 400);
  
  // building 1
  b1=new Building();
  b1.position=4;
  b1.floors=23;
  
  // building 2
  b2=new Building();
  b2.position=1;
  b2.floors=12;
  
  // building 3
  b3=new Building();
  b3.position=2;
  b3.floors=20;
  
  // building 4
  b4=new Building();
  b4.position=3;
  b4.floors=15;
  
  // building 5
  b5=new Building();
  b5.position=5;
  b5.floors=37;
  
  // building 6
  b6=new Building();
  b6.position=6;
  b6.floors=10;
  
  // building 7
  b7=new Building();
  b7.position=7;
  b7.floors=25;
  
  // building 8
  b8=new Building();
  b8.position=8;
  b8.floors=40;
  
  // building 9
  b9=new Building();
  b9.position=9;
  b9.floors=32;
  
  // building 10
  b10=new Building();
  b10.position=10;
  b10.floors=47;
  
  // building 11
  b11=new Building();
  b11.position=0;
  b11.floors=26;
 
}

function draw() {
  background("black");
  b1.display();
  b2.display();
  b3.display();
  b4.display();
  b5.display();
  b6.display();
  b7.display();
  b8.display();
  b9.display();
  b10.display();
  b11.display();
}