What is the best practice to not to override other bound functions to window.onresize?

How much I dig into JavaScript, I find myself asking that much. For example we have window.onresize event handler and if I say:

window.onresize = resize;

function resize()
{
  console.log("resize event detected!");
}

Wouldn't that kill all other functions which is connected to the same event and just log my message in console?

If so I think there should be another notifier which tells me about window resize event - or a workaround maybe - without overriding other functions which are bound to same event.

Or am I totally confused by its usage?