Sorting

def sort_by_length(sort_this_array)
    sort_this_array.sort {|x,y| x.length <=> y.length}
end

def filter(filter_this_array)
    filter_this_array.select {|num| num > 5}
end


filter([1, 3, 7, 8])
sort_by_length [ "d", "a", "e", "c", "b" ]