javascript - Can I see if a timer is still running?

Question

Simple question here that I can't seem to find an answer for: Once a setTimeout is set, is there any way to see if it's still, well, set?

if (!Timer)
{
    Timer = setTimeout(DoThis,60000);
}

From what I can tell, when you clearTimeout, the variable remains at its last value. A console.log I just looked at shows Timer as being '12', no matter if the timeout has been set or cleared. Do I have to null out the variable as well, or use some other variable as a boolean saying, yes, I have set this timer? Surely there's a way to just check to see if the timeout is still running... right? I don't need to know how long is left, just if it's still running.

Answer 1

What I do is:

var timer = null;

if (timer != null) {
  window.clearTimeout(timer); 
  timer = null;
}
else {
  timer = window.setTimeout(yourFunction, 0);
}