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Postings from August 2006
David Green writes: > I guess my problem is that [1,2] *feels* like it should === [1,2]. > You can explain that there's this mutable object stuff going on, and I > can follow that (sort of...), but it seems like an implementation > detail leaking out. The currently defined behaviour seems intuitive to me, from a starting point of Perl 5. The difference between: my $new = \@orig; and: my $new = [@orig]; is that the second one is a copy; square brackets always create a new anonymous array rather than merely refering to an existing one, and that's the same thing that's happening here. Think of square brackets as meaning something like Array->new and each one is obviously distinct. > And I feel this way because [1,2] looks like it should be platonically > unique. I'd say that C< (1, 2) > looks like that. But C< [1, 2] > looks like it's its own thing that won't be equal to another one. SmylersThread Previous | Thread Next