how to make bar chart in javascript

1var b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11;
2
3function setup() {
4  createCanvas(400, 400);
5  
6  // building 1
7  b1=new Building();
8  b1.position=4;
9  b1.floors=23;
10  
11  // building 2
12  b2=new Building();
13  b2.position=1;
14  b2.floors=12;
15  
16  // building 3
17  b3=new Building();
18  b3.position=2;
19  b3.floors=20;
20  
21  // building 4
22  b4=new Building();
23  b4.position=3;
24  b4.floors=15;
25  
26  // building 5
27  b5=new Building();
28  b5.position=5;
29  b5.floors=37;
30  
31  // building 6
32  b6=new Building();
33  b6.position=6;
34  b6.floors=10;
35  
36  // building 7
37  b7=new Building();
38  b7.position=7;
39  b7.floors=25;
40  
41  // building 8
42  b8=new Building();
43  b8.position=8;
44  b8.floors=40;
45  
46  // building 9
47  b9=new Building();
48  b9.position=9;
49  b9.floors=32;
50  
51  // building 10
52  b10=new Building();
53  b10.position=10;
54  b10.floors=47;
55  
56  // building 11
57  b11=new Building();
58  b11.position=0;
59  b11.floors=26;
60 
61}
62
63function draw() {
64  background("black");
65  b1.display();
66  b2.display();
67  b3.display();
68  b4.display();
69  b5.display();
70  b6.display();
71  b7.display();
72  b8.display();
73  b9.display();
74  b10.display();
75  b11.display();
76}