There's no real reason to shorten this if it will stay that way. Shorter is not always better.

You could make it more scalable like that:

next if exists
  { map {$_=>undef} qw(first second third) }->{ $field }
[download]

But that is certainly less effivient than hard-coded! Use this (or something like it) only if you need this point to be that extendable.

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