If the data is best represented that way, why not?

When you have a data structure that is by itself simpler, but doesn't represent your data very well, things can become more complicated than if you just the best fitting data structure in the first place - even if it's deeply nested.

In reply to Re^2: Preventing autovivification while accessing value by moritz
in thread Preventing autovivification while accessing value by naikonta

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