HTML Canvas Grid of X's

xgrid.js

function draw() {
  var canvas = document.getElementById('canvas');
  if (canvas.getContext) {
    var ctx = canvas.getContext('2d');

    ctx.beginPath();

    var scale = 10;
    var spacing = 20;

    for (let x = 0; x <= 1000; x += spacing) {
      for (let y = 0; y <= 1000; y += spacing) {
        ctx.moveTo(x, y);
        ctx.lineTo(x + scale, y + scale);
        ctx.moveTo(x + scale, y);
        ctx.lineTo(x, y + scale);
        ctx.stroke();
      }
    }
  }
}