Hi
could someone please be so kind to explain me the difference between line 137 and line 140?
DB<136> @list= ("a".."c","DBIC","A".."C","DANCER","a".."c")
=> ("a", "b", "c", "DBIC", "A", "B", "C", "DANCER", "a", "b", "c")
DB<137> for (@list) { push @result,$_ if /DBIC/.. /DANCER/ and ! //
+ }
=> ""
DB<138> @result
=> ("A", "B", "C")
DB<139> grep { /DBIC/.. /DANCER/ and // } @list
=> ("DBIC", "A", "B", "C", "DANCER")
DB<140> grep { /DBIC/.. /DANCER/ and ! // } @list
=> ()
For an explanation of the empty regex // please see Re: grep trouble and Re^4: grep trouble (body of flip-flop range).
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