Callback

Things go well until they don't . Need to figure out callback functions
(a function that runs after another has completed). Sounds easy enough:
run alert Hello after my random array has been created. In fact, Hello keeps
repeating for every turn of the randomizer function. Long day ahead...

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Acutally, it was simple. Just call 'sayHello' first and 'randomizer' as a subroutine
within it!!