Step $3$: Implement buildDistributionArray$()(2$ points$)$

Implement the buildDistributionArray$()$ function to take an array of scores, built by parseScores$(),$ as an argument. The function should return a grade distribution array of length $5.$

The function should loop through the scores array and tally up the number of A$,$ B$,$ C$,$ D$,$ and F scores using the standard scoring system $(90$ and above $=A,80-89=B,70-79=C,60-69=D,59$ and below $=F).$ The grade totals should be stored in a distribution array where the number

of$.$As is the first number, number of $B$ s is the second number, etc.

Ex: buildDistributionArray$(["45","78","98","83","86","99","90","59"])$ should return $[3,2,1,0,2].$

buildDistributionArray$()$ should return $0,0,0,0,0$ when the scoresArray argument is an empty array.