canvas.create_rectangle code example

Example 1: rectangle in tkinter

from tkinter import *

root = Tk()

c = Canvas(root)
c.pack()
c.create_rectangle(100, 100, 200, 200)

root.mainloop()

Example 2: draw rectangle on canvas javascript

//Assuming you have canvas and context (ctx) set up:
ctx.fillStyle = "(enter color)";
ctx.fillRect(x, y, width, height);
//to set up canvas and context:
var canvas = document.getElementById("(enter canvas's id)");
var ctx = canvas.getContext("2d");