Is there any way of changing BOTH 'that' to 'them'?

Sure, just do two assignments. Or in the case of hash keys, delete the old one, and add the contents back in with a new name.

But the real answer is that you should try to avoid redundancy in mutable data structures. Depending on your actual problem, there is a good chance that there's a better way to build your data structure, but without knowing what kind of operations you want to do with them, we can't tell.

You can also read up on normalization forms. That's a concept that's often used in the area of databases, but it (partially) applies to any mutable data structure.

Perl 6 - links to (nearly) everything that is Perl 6.

In reply to Re: Dynamic hash keys by moritz
in thread Dynamic hash keys by markdibley

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