Grid of circles

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(100);

  noLoop();

}

​

function draw() {

  const gridSize = 50;

  drawGrid(gridSize);

​

}

​

function drawGrid(gridSize) {

  for (let x = 0; x < width; x += gridSize) {

    drawAColumn(x, gridSize)

  }

}

​

function drawAColumn(x, gridSize) {

  for (let y = 0; y < height; y += gridSize) {

    circle(x, y, random(10, 40));

  }

}