> I've read the prototype API on bind and bindAsEventListener however
> their usage just hasn't clicked in my head yet. I'm pretty sure the
> answer lies within one of those functions but since I don't 100%
> understand those 2, I can't really be sure.

It's confusing at first (for me anyway), but definitely worth taking
the time to understand what binding does. With bind you're telling the
function what 'this' is going to refer to when executed. What you're
doing with preserving 'this' with the classObject variable is a
perfectly fine way of doing it, bind is just an alternate way of doing
it (with a function wrapper).

bindAsEventListener is exactly the same as bind except the event
object will be the first parameter when the function you're binding
gets called.

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