​

function setup() {

  foo = 7;

}

​

function draw() {

​

  print(foo);

​

  let bar; // this is a local variable, visible only inside of draw()

​

  for (let i = 0; i < width/2; i++) { 

    // i is a local variable visible only inside this for() loop

    ellipse(i, height/2, 10,15);

  }

  print (i);

}