Ah, can't believe I missed the keys were only being deleted once!

hash_filter_delete is indeed the only function which modifies the source hash instead of constructing a new one. See this node for the inspiration.

As for the tiny payload, the data I am actually using this hash_filter function on is of similar size and depth. I could try out some larger payloads with more levels of hash nesting to see if the iterative version does any better.

Thanks,

Jim

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In reply to Re^3: A more elegant way to filter a nested hash? Benchmarks! by jimpudar
in thread A more elegant way to filter a nested hash? by jimpudar

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