Is it wise to use intergers for keys in a hash array?
Wise? It's certainly okay, but it's not inherently better
than using strings for the hash keys. In fact, the integers will be
implicitely converted to strings anyway (i.e., 1 becomes '1' and 2
becomes '2'). This does not create any problems, though, because
it's transparent and fully reversible (unlike, say, using references
as hash keys, which creates problems in Perl5, although I think Perl6
is fixing that).
So, feel free to use the numbers as your hash keys if it suits your
purposes, but in a different situation if strings would suit your
purposes better, then use those. TMTOWTDI.
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