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This might be a modest improvement:
use List::Util 'first'; sub insert_after_first { my ($arr, $element, $insert) = @_; if (my $first = first {$arr->[$_] eq $element} 0..$#$arr) { splice @$arr, $first+1, 0, $insert; return 1; } }
There's no point in your returning the array; you're modifying it in-place. You just want to indicate success or failure.

Caution: Contents may have been coded under pressure.

In reply to Re: Inserting an element into an array after a certain element by Roy Johnson
in thread Inserting an element into an array after a certain element by saintmike

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