True, or we can avoid generating the elements in the first place: 

sub groups_of_n
{
  sub min
  {
    return $_[0] < $_[1] ? $_[0] : $_[1];
  }
  my $n = shift;
  return map { [ @_[$_*$n..min($_*$n+$n-1,$#_)]] } 0..$#_/$n;
}

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sgifford's Web page

In reply to Re^3: Syntactically cool list of lists by sgifford
in thread Syntactically cool list of lists by jettero

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