Question

I’m currently using a loop that repeats itself every few milliseconds in my program. In this loop, it checks for a certain input, and if received, cancels another timeout. Essentially:

if (inputreceived && secondTimerRunning)
{
   timerID2.clearTimeout();
   secondTimerRunning = false;
}

However, those lines cause my loop to terminate. From what I can tell, it’s because I am trying to clear a Timeout that doesn’t exist. Is there a way to prevent this, or am I using Timeouts wrong?

Answer 1

The syntax for clearTimeout() is;

clearTimeout(timerID2);

It is a function which accepts the ID returned by setTimeout(); i.e. you don’t call it on the ID returned.

clearTimeout will not error if the value you pass to it is not a valid ID.

For more info, see the documentation for clearTimeout() on MDC.