Examples

a script that iterates a variable by 1, 8 million times in one second

event onload {
  frames = 0
  repeat (8000000) {
    frames += 1
  }
  exit()
}

an update loop that does a similar thing

event update {
  frames += 1
  if (frames > 10000) {
    exit()
  }
}

event onload {
  frames = 0
}

A script that logs the mouse x and mouse y whenever the mouse moves

event mouse onmove {
  mouse = window.mouse
  log(mouse.x,mouse.y)
}