I'd be inclined to use PushNew and UnshiftNew because you are adding a new key or replacing an old one. The reorder is kinda incidental to the fact that you want the new key to be the authoritative one.

Premature optimization is the root of all job security

In reply to Re: MCE::OrdHash naming Push and Unshift methods supporting merging and reordering by GrandFather
in thread MCE::OrdHash naming Push and Unshift methods supporting merging and reordering by marioroy

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