Re: print map question

On Sat, Nov 13, 2010 at 05:43:21AM -0500, Uri Guttman wrote: > > "MM" == Mike McClain writes: > MM> Could someone tell me why there is a comma printed after the newline? > because you put it there. the \n is input to the map, not the print! > map's last arg is a list and it takes @list AND

Re: print map question

> "MM" == Mike McClain writes: MM> mike@/deb40a:~/perl> perl -we ' MM> @list=qw/Perl is cool./;print( "list=\t", map { "$_," } @list, "\n"); MM> ' MM> list= Perl,is,cool., MM> ,mike@/deb40a:~/perl> MM> Could someone tell me why there is a comma printed after the newline? becau

print map question

mike@/deb40a:~/perl> perl -v This is perl, v5.8.8 built for i486-linux-gnu-thread-multi mike@/deb40a:~/perl> perl -we ' @list=qw/Perl is cool./;print( "list=\t", map { "$_," } @list, "\n"); ' list= Perl,is,cool., ,mike@/deb40a:~/perl> Could someone tell me why there is a comma printed after the

Re: map question

--- [EMAIL PROTECTED] wrote: > context". How do you evaluate a block in scalar context? Any light on > this ( or a pointer ) maybe? print { *STDOUT } "foo\n"; This is looking at the block to return the filehandle to which the output should go. Surely that argument is in a scalar context, sep

Re: map question

At 11:40 AM 6/13/01 -0500, [EMAIL PROTECTED] wrote: >How do you evaluate a block in scalar context? Any light on this >( or a pointer ) maybe? $ perl -le 'do { print wantarray ? "LIST" : "SCALAR" }' SCALAR perlfunc should mention this under 'do', perhaps... -- Peter Scott Pacific Systems Design

Re: map question

Dave> Well it's quite simple actually. A BLOCK of Perl code is a BLOCK of Perl code. Dave> No matter where you put it. Typically anything inside a set of {}'s is a block Dave> of code. So the fact that a subroutine consists of a block of code Dave> Dave> sub foo { BLOCK } Dave> Dave> and ma

Re: map question

On Fri, 8 Jun 2001 [EMAIL PROTECTED] wrote: > Gurus, > perldoc -f map says, > > >- > map BLOCK LIST > map EXPR,LIST > Evaluates the BLOCK or EXPR for each ele

map question

Gurus, perldoc -f map says, - map BLOCK LIST map EXPR,LIST Evaluates the BLOCK or EXPR for each element of LIST (locally setting `$_' to each element