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Re^2: why can't I shift a split?

by johngg (Canon)
on Aug 27, 2022 at 15:16 UTC ( #11146472=note: print w/replies, xml ) Need Help??


in reply to Re: why can't I shift a split?
in thread why can't I shift a split?

#print "\n", shift(234, 4, 55, 1900);        # Error: Can't overwrite the array, because it's fixed.

shift works by default on @_ in a subroutine (also true of pop) so you could use an on-the-fly sub to operate on a list.

johngg@aleatico:~$ perl -Mstrict -Mwarnings -E ' my @arr = ( 234, 405, 55, 1900 ); say shift @arr; say sub { shift }->( 234, 405, 55, 1900 ); $_ = q{ab,ce ef}; say sub { shift }->( split m{,} );' 234 234 ab

I hope this is helpful.

Update: Corrected typo, s{on (?=by default)}{}.

Cheers,

JohnGG

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