​

function setup() {

  createCanvas(600, 200);

  fill(255,183,173); 

  noStroke(); 

  x = 0;

}

​

function draw() {

  background(240);

  var x = 0;

​

  while(x <= 600){//as long as x is less than 600 it'll keep looping

  ellipse(x,100,20,20);

  x += 50; //shorthand way of doing this; every time it loops it'll loop by 50

  }

  //OR:

  //for(var x = 0; x <= 600; x += 50)){

  //ellipse(x,100,20,20);

  //ellipse(x,100,20,20);

 // x = x + 50;

}