Loop forever and provide delta time

Question

I\'m writing an HTML5 Game Development Javascript framework and I want to provide the user the difference in time between the last tick and the current one.

Answer 1

This is what I use:

var lastTick = performance.now()

function tick(nowish) {
  var delta = nowish - lastTick
  lastTick = nowish

  update(delta)
  render(delta)

  window.requestAnimationFrame(lastTick)
}

window.requestAnimationFrame(lastTick)