How to call requestAnimationFrame with a
A = -> @animate() A::animate = -> requestAnimationFrame @animate a = new A()
// log: Uncaught TypeError: Failed to execute 'requestAnimationFrame' on 'Window': The callback provided as parameter 1 is not a function.
This doesn’t work because when requestAnimationFrame calls this.animate in its stomach,
this is no longer the instance.
A::animate = -> requestAnimationFrame => @animate()
It’s the same as
setTimeout, or any other function that calls another function by its name: beware of where its
this point towards.