Catman...n_field(3pm)

💖 NAME 💖

okay so bestie, <pink>Catmandu::Fix::retain_field</pink> — it deletes everything from a field except ✨ (yes the sentence just ends there, that's canon, we don't make the rules 🫶)

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😭 DEPRECIATION NOTICE 😭

NOT ME DELIVERING BAD NEWS BUT... this fix is deprecated. 🫠 Please use Catmandu::Fix::retain instead. She's the glow-up, the main character now, the one you actually want. 👑

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✨ SYNOPSIS ✨

# Delete every key from foo except bar
retain_field(foo.bar)

the way that one little line does SO much?? 💅 foo.bar means: keep bar, evict everyone else from foo, no survivors, no drama. 🦋

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🌈 SEE ALSO 🌈

• Catmandu::Fix — the whole fix ecosystem, your home base, go say hi 🎀

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k bye ily, this page came from the User Contributed Perl Documentation crew, running on perl v5.40.1, dated 2026-01-24 — go forth and retain instead, mwah 💜🌸