​

let n = 0;

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  // if(isLooping()) print("yes");

  background(220);

  fill(0,0,255)

  n += 10;

  circle(n,n,20);

  textSize(30);

  text(n,n+20, n);

  noLoop();

}

​

function keyTyped() {

​

  loop();    // one loop() steps the circle one step per key press

  loop();    // two loop() steps the circle twice

  loop();    // three or more loop() steps the circle only twice

  // loop()

}