createCanvas(600, 400);

}

​

function draw() {

  background(0);

  strokeWeight(4);

  stroke(255);

  let x = 0;

  let r = 0, g = 0, b = 0;

  //standard while loop

  while (x <= width) {

    fill(0, 200, 255);

    circle(x, 100, 25);

    x += 50;

  }

  //for loop

  for(x = 0; x <= width; x += 50) {

    fill(255, 0, 200);

    circle(x, 300, 25);

  }

​

}