Perl's arrays are homogeneous. A beginner may not need to know much about Perl's typing, but we should not give him things that will need to be unlearned to advance.
This is clarified in the OP, The original post clarifies its statement that arrays are heterogeneous but I feel the correction is too distant--the reader may not make the connection or may not read so far.
Nice post.
Be well,
rir
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