A very simple "loading ..." animation in 5 lines of JavaScript

Here's a way to do a really simple "loading ..." animation, in just 5 lines of JavaScript

i = 0;
setInterval(function() {
  i = ++i % 4;
  $("#loading").html("Loading "+Array(i+1).join("."));
}, 800);

Working JavaScript Demo on codepen.io

For the lazy, who don't want to go over to codepen.io and see the actual working JavaScript demo. Here's an animated gif that will give you an idea of what it looks like.