in reply to Re^2: basic question:how to print a reversed array from STDIN
in thread basic question:how to print a reversed array from STDIN

I agree with you in regards to grep, but map? It's sole purpose is the modification of $_.


holli, /regexed monk/

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Re^4: basic question:how to print a reversed array from STDIN
by Corion (Patriarch) on Dec 04, 2008 at 12:55 UTC

    No - map returns a new list, so changing $_ makes little sense. Either use a foreach if you want to do an inplace modification of a list or return a fresh list and try to keep away from changing the list alias :)

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      Yes, if you take care about the list on the right hand side. But, consider this: 
      map  { s/^.//;  }
grep { /^[abc]/ }
@somewords;

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      holli, /regexed monk/
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        Now I also cringe at the map in void context.

        There's also a lack of visual distinction between list generation and list transformation. 

        s/^.// for grep { /^[abc]/ }
           @somewords;

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