All of the references are to the hashes %new and %old; the leading @ and curlies is just the way you name slices. The only array involved in the whole thing is @keys.

As for relying on the ordering, I think it's pretty safe to count that the rvalue will be computed and available before the lvalue is populated with it.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re^3: grep for hash? by Fletch
in thread grep for hash? by rovf

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