clearInterval in if doesn't work

Question

I have something like this:

function myFunction()
{
    var testVar;
    if(txt == "Maybe")
    {
        txt == "No";
        testVar = setInterval(function(){ zrobTo() }, 1000);
    }
    else if(txt == "No")
   {
        txt == "Maybe";
        clearInterval(testVar);
    }
}

When clearInterval isn't in if then code is working, but I wanna have this in if. Is it possible?

Answer 1

The reason is that the setInterval is never leaving the function. Since the variable is local, it is deleted when the function ends. There is no way around this that I have found. D=